Online Learning. G7 Science: Energy Conversions by Ms Pringle

Online Learning. G7 Science: Energy Conversions by Ms Pringle https://padlet.com/cpringle13/ofnk45zhvlda Share your knowledge with each other, ask questions and show you are engaged in your learning. en-us 2020-02-01 03:58:37 UTC 2024-09-04 07:53:40 UTC hello@padlet.com https://padlet.net/icons/png/1f3a2.png cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439088229

Please use this Padlet to ask and answer questions about Energy Conversions. Please note that EACH student is expected to add to the padlet at LEAST three times per week by asking and answering questions.

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]]> 2020-02-01 04:11:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439088229 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439398049 Ms Pringle do we do our work as if we had our old schedule or de we just do it anytime today?]]> 2020-02-03 00:37:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439398049 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439421346 Ms Pringle, where do we put the activities under section 4? c or d?]]> 2020-02-03 02:21:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439421346 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439421858 what would happen to the kinetic energy of an object if you doubled the mass?]]> 2020-02-03 02:24:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439421858 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439423458 Dylan: your schedule is flexible, so you can start any time, most of your teachers will only upload lessons at 3pm though. Mr. Post will send out clarification later, but the idea is that you try to finish any Day B work from today by the end of tomorrow, then tomorrow's work by the end of Wednesday, etc. I hope that's clear enough?]]> 2020-02-03 02:32:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439423458 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439424345 Edward: did you see the instructions I sent? Everything should be in Section 4, which you should have titled Energy Conversions, this is where you will add your new vocabulary and notes every week. Today's activity is Activity 1: PHET Energy Skate Park (the first assignment on Hapara)]]> 2020-02-03 02:36:18 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439424345 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439425358 Siya: great question! As you are using the Energy Skate Park simulation today, try changing the mass of your skater and see how this affects his kinetic and potential energy on the bar graph. The relationship you should see is that the greater the mass, the greater the KE (it will also be doubled). ]]> 2020-02-03 02:39:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439425358 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439428133 What will happen to the potential energy when a rubber band is stretched? ]]> 2020-02-03 02:50:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439428133 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439428884 On the third skate ramp in the intro, why can the skater keep going forever?]]> 2020-02-03 02:53:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439428884 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430080 Izzy: the more you stretch a rubber band, the more potential energy you will have, as you are storing elastic energy in the rubber band as you stretch it. ]]> 2020-02-03 02:57:52 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430080 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430363 How does friction affect the skater while it is moving?]]> 2020-02-03 02:59:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430363 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430453 How does friction relate to the amount of thermal energy being created? ]]> 2020-02-03 02:59:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430453 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430610 Anthony: The intro portion represents a frictionless environment, so the potential energy is converted to kinetic energy and then the KE is converted back to PE without any energy being lost. This is not representative of a a real life scenario, where energy will be lost as it is converted into sound and heat (due to friction), you can explore the other tab (friction) to see how he will eventually stop due to energy transfer/loss of energy to the surroundings. ]]> 2020-02-03 03:00:30 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430610 2115554_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430815 How does the speed relate to the potential and kinetic energy of the skater?]]> 2020-02-03 03:01:29 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430815 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430964 Anthony: more friction will slow the skater down, as it causes him to lose energy to the surroundings. More friction results in more of his energy being transferred into heat (thermal) energy and some sound energy (more friction = more thermal energy). ]]> 2020-02-03 03:02:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439430964 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439431346 Christina: speed (or velocity) is how fast he is moving, so the higher his speed, the higher his kinetic energy, they are directly related/directly proportional. The highest potential energy will be when he has a speed of zero (at the top of the ramp) because he hasn't used any of the energy to move yet (it hasn't been converted to KE yet). ]]> 2020-02-03 03:04:18 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439431346 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439431910 If the skater were to fall (ex. from a elevated position) on to the top of the ramp, would it affect the KE and the PE of the skater?]]> 2020-02-03 03:06:40 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439431910 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439433131 Edward: The higher the skater is the more PE he has, this will be then converted to KE, so increased height increases both PE and then KE. If he skates or falls from a certain height his PE will always start out the same (PE is calculated using height and mass of the skater), but his KE will depend on whether he loses any energy due to friction (in the intro section it will be equal to PE, since there is no friction).]]> 2020-02-03 03:12:33 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439433131 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439433357 So the mass of an object effects the potential and kinetic energy that object has.]]> 2020-02-03 03:13:23 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439433357 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439434545 What does KE and PE have to do with Thermal Energy?]]> 2020-02-03 03:18:31 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439434545 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439436295 Dylan: yes that is correct, mass increase PE, which then increases KE]]> 2020-02-03 03:25:35 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439436295 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439437003 Is there an equation that proves that energy is always conserved?]]> 2020-02-03 03:27:06 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439437003 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439437019 Edward, please scroll up to my answer to Anthony's question about thermal energy. Thermal energy is kinetic, and the more friction you have the more thermal energy you will have in the skater example. ]]> 2020-02-03 03:27:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439437019 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439437688 Sunny: the total energy of the system is calculated as PE + KE. ]]> 2020-02-03 03:30:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439437688 218594 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439441182 what is the formula for kinetic energy]]> 2020-02-03 03:44:47 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439441182 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439445876 What does gravitational acceleration mean? ]]> 2020-02-03 04:02:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439445876 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439447967 Hi Ashley, you do not need to do any calculations at this point, you will only do calculations in high school. ]]> 2020-02-03 04:11:13 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439447967 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439448443 Dylan: gravitational acceleration is a constant number that we apply to calculate the force of gravity on a falling object, can you give me some context please, as I'm not sure how this relates to your tasks. ]]> 2020-02-03 04:12:45 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439448443 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439448859 Ms. Pringle, the energy skate worksheet on hapara only allows me to view and it isn't my own copy, If I make my own copy how do I submit it? ]]> 2020-02-03 04:14:06 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439448859 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439449417 Hi Jessica, I think you aren't signed into your Hapara workspace. Please reopen mystudentdashboard.com and check that you are signed in with your AIS account.]]> 2020-02-03 04:16:16 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439449417 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439456418 The reason I was asking what gravitational acceleration is is because it is part of the formula for Potential Energy]]> 2020-02-03 04:46:58 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439456418 21011110_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439458354 Hi Ms. Pringle, so I was checking what thermal energy and friction was for clarification and I thought of a question: is there a relationship between thermal energy and friction? Why or why not?]]> 2020-02-03 04:58:37 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439458354 2191033 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439462398 Why isn't velocity part of the formula for Potential Energy but it is for Kinetic Energy?]]> 2020-02-03 05:28:52 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439462398 2172143 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439468615 What does thermal energy mean?]]> 2020-02-03 06:22:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439468615 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439470258 Why when I drop my skater at the middle of the track there will be no PE or KE at all and there is only thermal energy? -Michelle Q]]> 2020-02-03 06:36:09 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439470258 2138062_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439470522 Why when I drop my skater at the middle of the track there will be no PE or KE at all and there is only thermal energy? ]]> 2020-02-03 06:38:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439470522 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439470647 Ms Pringle, does PE rely on KE?]]> 2020-02-03 06:39:07 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439470647 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439473617 Jessica: The skater uses PE which becomes KE as he moves , so PE and KE definitely affect each other. The more PE, the more KE.]]> 2020-02-03 06:57:53 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439473617 213290_9 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439485722 Jasmine: thermal energy is energy that comes from heating a substance.]]> 2020-02-03 07:48:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439485722 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439492045 I just realized that a huge part of kinetic and potential energy is that you have to know if that object is currently stationary or if that object is picking up speed or slowing down speed. For example, if you were on a simple U shape rollercoaster and your current position was the center and you were stationary, your kinetic energy would be nothing but your potential energy would be very high. But if you were coming down from the top and sloping down to the center of the rollercoaster your potential and kinetic energy would be equal. ]]> 2020-02-03 08:10:04 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439492045 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439492347 If you don't get any information about the object being stationary or not then you do not know the current kinetic or potential energy.]]> 2020-02-03 08:10:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439492347 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439498812 Thermal energy (also known as heat energy) can be produced by two surfaces colliding. The amount of thermal energy produced on impact is also effected by the weight of the object. You can test this by changing the size of the skater. - Matthew]]> 2020-02-03 08:30:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439498812 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439499002 Dylan: gravitational acceleration is constant on Earth at 9.8 m/s/s. You won't need to calculate PE for these activities, however I am happy to provide some more extension tasks if you want to try this later in the week]]> 2020-02-03 08:31:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439499002 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439499060 what would happen to the PE if we tripled the mass of the object? - Prisha]]> 2020-02-03 08:31:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439499060 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500084 Cindy: more friction will result in more thermal energy, as more movement means more heat, rub your hands together and you'll feel the friction is causing heat!]]> 2020-02-03 08:34:25 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500084 2155821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500329 If the mass was doubled, would the potential energy also double?]]> 2020-02-03 08:35:00 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500329 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500604 Raine: velocity is speed, maximum potential energy is when the object is not moving (velocity or speed is zero), all energy that involves movement of particles or objects, and thus speed, is kinetic energy]]> 2020-02-03 08:35:46 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500604 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500843 Jasmine: thermal energy is heat energy, you can read more about it on the article I've linked in for you to read on Friday]]> 2020-02-03 08:36:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500843 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500921 Anonymous: please sign in]]> 2020-02-03 08:36:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439500921 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439501109 Raine: velocity means the speed of something in a given direction, kinetic energy is the energy an object has due to its motion. so when you are calculating KE you would use velocity but not while calculating PE. - Prisha]]> 2020-02-03 08:37:09 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439501109 2190037_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439501677 Technically, shouldn't thermal energy be produced by friction caused by the skater skating?-Matthew]]> 2020-02-03 08:38:40 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439501677 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439502301 Michelle: this is when the skater has equal amount of KE and PE (they are not zero) or if you are using friction instead of using the intro tab (which you should be using), all of the energy is eventually transferred into thermal energy, this is why if you roll something along the floor, it won't roll forever, it will eventually stop as it loses energy to the surroundingg]]> 2020-02-03 08:40:29 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439502301 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439502866 Prisha and Diya, I already answered your question about mass this morning (see answer to Siya). Prisha please sign in!]]> 2020-02-03 08:42:02 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439502866 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439503000 Nice answer Edward!]]> 2020-02-03 08:42:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439503000 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439503220 Nice analysis Dylan!]]> 2020-02-03 08:42:58 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439503220 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439503931 Matthew: yes, but in the intro it is representing a zero friction environment, in real life there would be energy transfer to thermal energy]]> 2020-02-03 08:45:04 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439503931 2155821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504040 Ms Pringle what makes kinetic energy increase?]]> 2020-02-03 08:45:24 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504040 2102195_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504063 In the first video, the sun was taking energy from the boy, when he started biking, the sun stopped 'drinking' energy from him. What does that mean?]]> 2020-02-03 08:45:29 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504063 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504100 I'm signing off now, please help out by answering each other, I will be back online tomorrow morning (and during normal school hours) if any of you need help! Thanks for your hard work and engagement today!]]> 2020-02-03 08:45:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504100 2175592_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504441 Why does the skater never stop skating in the intro? ]]> 2020-02-03 08:46:55 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439504441 2191162 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439512618 what does thermal mean]]> 2020-02-03 09:16:07 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439512618 219140_4 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439512843 Why does having more mass make it so that there is more KE and PE]]> 2020-02-03 09:16:50 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439512843 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439526235 Satyadeep, thermal as a word means anything related to heat. Thermal energy, is the energy made when energy is generated by heat.]]> 2020-02-03 09:54:45 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439526235 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439528117 Diya, velocity and mass increase or decrease KE. ]]> 2020-02-03 10:00:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439528117 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439528311 How is Thermal energy related to PE and KE]]> 2020-02-03 10:00:45 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439528311 2191632_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439529020 I don't know that how this PE and KE works (in a more detailed way ) . - Martin]]> 2020-02-03 10:03:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439529020 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439545748 ms.pringle, do we finish our assignments daily or weekly? - Ankul]]> 2020-02-03 10:57:08 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439545748 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439564816 if the U shape was uneven on either the right or left side, the skater wouldn't have the same effect as if he would on a normal U shape track. The skater would fall off or not have any more kinetic energy to carry.]]> 2020-02-03 12:00:47 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439564816 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439566211 Ankul I think that thermal energy carries heat which is a form of kinetic and potential energy combined because when the energy is transferred it is kinetic energy and when something is just storing the heat it is a form of potential energy.]]> 2020-02-03 12:04:52 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439566211 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439568226 does anyone know when this is due or does it not say yet.]]> 2020-02-03 12:10:40 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439568226 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439694010 Anonymous: Activity 1 is due Friday, other information is on https://docs.google.com/document/d/1qjCOWeEjf7HVm-bYVC1y9krq1f0evsdhD4sZO39TB_8/edit?usp=sharing]]> 2020-02-03 15:26:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439694010 2130231_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439698790 Is there ever no energy or does it always change into another type of energy? -Anusha]]> 2020-02-03 15:32:03 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439698790 2130231_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/439699006 Anonymous: Activity 1 is due Friday, other information is on https://docs.google.com/document/d/1qjCOWeEjf7HVm-bYVC1y9krq1f0evsdhD4sZO39TB_8/edit?usp=sharing - This was from me, I did not know I wasn't logged in.]]> 2020-02-03 15:32:18 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/439699006 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440016422 Good morning everyone,

A few reminders as you get started on your learning today:

1) Please make sure you have read through all the instructions on every page of the weekly lesson document, a lot of you seem to be skipping steps, or confused about which order to do things. For example, asking definitions which you should have read as part of the first step of the lesson.

2) This is a sharing forum, please help each other by giving pointers, answering questions or short explanations of what you understand.

3) Please SCROLL UP to see if someone else has asked or answered your questions, there are a lot of repeated questions.

4) Please note that I will only be online during normal school hours, and while I will try to get to as many questions as possible, I am also communicating with grade 8, which is why I need all of you to all actively answer questions as well.

Have a great day!

]]> 2020-02-04 00:34:20 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440016422 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440019149 ALSO: PLEASE MAKE SURE YOU ARE SIGNED IN!]]> 2020-02-04 00:44:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440019149 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440040547 Here is a video where I explain PE and KE, and hopefully answer some of your questions. Apologies for the slight lag in sound quality. Let me know if you're still confused or have any other questions. Please note that at 4:41, should say: when I drop him from a height his POTENTIAL energy is converted to KINETIC energy]]> 2020-02-04 01:55:27 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440040547 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440047255 Anusha: if something has a height of zero, and it is not moving, it has zero energy. It can only gain energy by being moved/lifted up or if the energy is transferred from somewhere else (like a motor/engine)]]> 2020-02-04 02:18:04 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440047255 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440049610 In a Ferris wheel, if your box goes down is it kinetic energy? And if your box goes up is it potential energy? -Alex Y.]]> 2020-02-04 02:26:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440049610 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440053210 Alex: there is a motor that drives ferris wheels, so in that example, electrical energy from the motor is converted into mechanical energy (kinetic movement). It is gaining energy from the motor to pull it up initially, this is the same thing that happens at the start of a rollercoaster where a motor pulls you to the top of the first hill. The box/car at the top of the ferris wheel has the most potential energy, as it's the highest, and PE decreases the lower the box is. All of the moving boxes have kinetic energy, some of it comes from PE (boxes that are moving down), but some of it also comes from the motor. This is different from the skater example because energy is constantly being added to the system. Also, please sign in!]]> 2020-02-04 02:40:23 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440053210 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440054901 i noticed that the more the kinetic energy increases, so does the speed or the velocity of the skater. I also noticed that when the skater is on the top or when the skater has the least amount of movement, that is the highest point of the potential energy and the speed is zero.]]> 2020-02-04 02:47:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440054901 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440057851 Here is a cool demonstration of energy using a pendulum: https://youtu.be/7FfKaIgArJ8
Here is an additional article if any of you are still confused.]]> 2020-02-04 02:58:51 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440057851 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440060855 Here is a slideshow]]> 2020-02-04 03:09:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440060855 2115554_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440062886 After reading through the slideshow, I know that potential energy is energy stored in an object while kinetic energy is energy of an moving object. I also learned when an object has more mass and height, there's more potential energy. Whereas, an object that moves faster and also has more mass, there's more kinetic energy. ]]> 2020-02-04 03:18:20 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440062886 2176781 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440063409 I learned that thermal energy is produced due to friction. The more mass, the more energy is produced. When speed is at 0, kinetic energy increases, the more speed. If you are standing at the same height, there is no kinetic or potential energy. If you drop him from a height, the energy will turn into thermal energy. ]]> 2020-02-04 03:20:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440063409 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440070856 Jun: Kinetic energy and speed go together, when speed is at it's greatest, kinetic energy is at its highest. At any height above the ground you will have potential energy (gravitational potential energy), if something is on the floor not moving, its energy is zero. Kinetic energy will only convert to thermal energy if there is friction. ]]> 2020-02-04 03:49:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440070856 2176781 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440078153 Oh ok.]]> 2020-02-04 04:23:10 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440078153 2176781 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440078237 I have one question, does gravity matter to the kinetic energy and potential energy?]]> 2020-02-04 04:23:33 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440078237 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440079224 Jun: Gravity affects potential energy, the higher you put something, the further it can fall due to gravity. Potential energy caused by height is also known as gravitational potential energy.]]> 2020-02-04 04:27:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440079224 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440079547 Here is a spreadsheet showing your Padlet participation so far. I will update it at 12pm again tomorrow. ]]> 2020-02-04 04:28:44 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440079547 sunnythepro666 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440080911 Is there any possibility to covert an energetic form of heat energy into useful work? ]]> 2020-02-04 04:35:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440080911 2190923_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440081024 question: does kinetic energy decrease due to friction?]]> 2020-02-04 04:36:10 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440081024 2185251 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440081588 What is the reasons of importance of energy efficiency issue in network management?- Micheal ]]> 2020-02-04 04:39:28 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440081588 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440081834 I noticed that when I was making my own loop in the playground, the more the mass of my skater, the easier it was for it to go through the loop. I'm confused why.]]> 2020-02-04 04:40:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440081834 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440082251 Rachel kinetic energy decreases due to friction because the more the skater skates, the more thermal energy is being created which stops the skater from moving. So, in the end the skater completely stops moving and there is a lot of thermal energy created.]]> 2020-02-04 04:42:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440082251 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440082277 During Physics and Chemistry, what is the law of conservation of energy? ]]> 2020-02-04 04:43:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440082277 21011110_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440082562 Sunny: the law of conservation of energy is that energy cannot be created or destroyed, and only can be changed through one form to another.]]> 2020-02-04 04:44:37 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440082562 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440083136 What is the difference between electrical and electromagnetic energy?]]> 2020-02-04 04:47:19 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440083136 219074_26 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440084409 Sunny, Electric energy is when electric charge moves through a conductor but electromagnetic energy is created when two electric charges, this is what I learnt in my old school]]> 2020-02-04 04:55:35 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440084409 2115554_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440085193 Siya: The more mass the object is, the more kinetic and potential energy it has. So that's why it was easier for your skater when he/she had more mass. ]]> 2020-02-04 05:01:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440085193 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440086428 Micheal, please don't google questions, networks have nothing to do with the current topic]]> 2020-02-04 05:11:04 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440086428 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440086792 Sunny: Heat energy can be used for cooking, heating up houses, in steam engines and in anything that conducts heat, heat energy also gives us light, as lightbulbs heat up because they are hot. Electromagnetic energy is electricity current caused by magnetic force.]]> 2020-02-04 05:14:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440086792 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440087088 Siya: His mass increased his total energy, but if the skater with the lower mass went through the loop, the skater with the higher mass should've also gone through the loop, as he had a proportionally higher potential energy to start, which would've provided enough KE to move the larger mass, I'm guessing you must've changed the friction or the track.]]> 2020-02-04 05:16:56 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440087088 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440087218 Please don't downvote a comment or question for no reason, the downvote function should only be used if you feel that their statements or answers are incorrect. ]]> 2020-02-04 05:17:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440087218 2115554_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440087627 In the energy skate park, I noticed with enough potential energy my skater was able to go through two loops but if I wanted to make a third loop, how can I get more potential energy after the second loop without changing the mass or friction? ]]> 2020-02-04 05:20:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440087627 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440089949 Christina, you would need to lift up your whole skate setup to to make it much higher at the start (more PE), or you can add a downward slope right before your third loop to increase PE.]]> 2020-02-04 05:37:16 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440089949 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440099812 Ms Pringle, in the document that was assigned on Monday (PHET Energy Skate Park), on number 2 row 3, I don't really understand what the picture is showing. The picture has the star in the middle of the ramp. I think that it depends because if you just place the skater in the middle of the ramp, the KE and PE would be equal. But if you put the skater at the top of the ramp, press play, and then press pause when the skater reaches the middle, the KE would be higher than the PE. ]]> 2020-02-04 06:45:30 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440099812 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440103907 I noticed that all objects that swing, such as a pendulum and a tyre have almost the same PE and KE bar chart. The higher the pendulum is, the more Potential energy it has, and the when it is in the middle, the kinetic energy is higher. I learnt that there are only two forces acting on it. One is gravity and the other one is tension. But my question is, does tension change the total energy? (The sum of kinetic energy and potential energy.)]]> 2020-02-04 07:09:04 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440103907 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440104836 Why can't you create energy -Karsten]]> 2020-02-04 07:13:31 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440104836 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440107827 Karsten: You can't create energy because energy is not something you can touch or smell. And the law of conservation of Energy states that energy cannot be created or destroyed. It can only be transformed from one to another.]]> 2020-02-04 07:26:46 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440107827 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440108015 Anthony: the star is at the bottom of the ramp, since his height is zero, his potential energy is zero, this is also the point where he is moving the fastest, which which is why KE is the highest. Halfway down the ramp (same question, row 4) he is half way down, so his potential energy is halved and he is half his maximum speed and kinetic energy. ]]> 2020-02-04 07:27:30 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440108015 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440108386 Karsten: please make sure you watch the videos before you ask questions here, I also linked a slideshow and an article in here and on Hapara earlier today.]]> 2020-02-04 07:28:42 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440108386 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440108736 I'm signing off now, I will back online first thing tomorrow morning, and I'll update your participation scores by lunchtime tomorrow and link the spreadsheet here. Thanks for your hard work so far everyone!]]> 2020-02-04 07:29:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440108736 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440123498 Is the speed of the entity making KE the only factor that increases/decreases the amount of KE made?]]> 2020-02-04 08:21:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440123498 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440127265 Also Ms Pringle there's a typo of my name in the google sheets, pls take out the "h" in Whitty, thanks.]]> 2020-02-04 08:33:10 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440127265 2191804 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440140549 How does potential energy transform into kinetic energy.]]> 2020-02-04 09:12:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440140549 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440143712 When are the most common times when there is both potential energy and kinetic energy?]]> 2020-02-04 09:22:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440143712 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440143919 Is a person walking kinetic energy?]]> 2020-02-04 09:22:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440143919 219074_26 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440144215 Alex, yes, any type of motion has kinetic energy in it]]> 2020-02-04 09:23:49 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440144215 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440144591 What are some example for kinetic energy to increase?]]> 2020-02-04 09:24:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440144591 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440144763 Do planets have potential energy?]]> 2020-02-04 09:25:29 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440144763 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440145051 Alex, one of the examples for kinetic energy to increase are moving cars because of its speed. Another example is running or moving airplanes because of its motion.]]> 2020-02-04 09:26:23 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440145051 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440145676 does light travelling count as kinetic energy]]> 2020-02-04 09:28:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440145676 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440146156 Kwun Ting NG: When force is applied to the object or when its being moved( potential energy), it is transform into kinetic energy.]]> 2020-02-04 09:30:07 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440146156 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440146330 Would sound be considered as kinetic energy? If so, why?]]> 2020-02-04 09:30:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440146330 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440147309 Jessica in a gas, sound energy will be counted as kinetic energy because it will produce moving energy by using waves and also sound is created by vibrations from something so that is why it is considered as kinetic energy.]]> 2020-02-04 09:33:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440147309 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440148631 If the temperature is cold or hot, will it affect kinetic energy? ]]> 2020-02-04 09:37:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440148631 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440148763 Why do we need kinetic and potential energy on a daily basis/our lives? ]]> 2020-02-04 09:38:00 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440148763 2130231_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440148804 I noticed the total energy is different according to the height of the skater. Also the potential energy depends on the kinetic energy because as the potential energy changes so does the kinetic energy and the other way around.]]> 2020-02-04 09:38:06 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440148804 2130231_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440149548 Jessica- I am not sure we NEED kinetic and potential energy, it's more of the fact that it is there. In our lives we are using different types of energy all the time. If we are not moving we are using potential energy, and when we move around that potential energy changes to kinetic energy.]]> 2020-02-04 09:40:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440149548 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440150223 Jessica, Kinetic energy is important because it is used as a tool as a way we can relate mass and motion to describe the state of an object. ]]> 2020-02-04 09:41:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440150223 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440155601

how is friction created and how does that convert into thermal energy

]]> 2020-02-04 09:57:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440155601 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440157460 Alex: the more the skater skates, the more kinetic energy turns into friction which then creates more thermal energy. However, the total amount of energy never changes.]]> 2020-02-04 10:02:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440157460 2130231_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440158536 In number 7b (The one with the left side longer than the right) why does the kinetic energy never reach the same amount as the total? Also why does the potential energy never go down all the way?]]> 2020-02-04 10:05:44 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440158536 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440165980 why does the velocity keep decreasing and why does the skater slow down so much in 7b? is it because of the uneven track or is it because there isn't enough potential energy?]]> 2020-02-04 10:26:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440165980 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440177292 Can potential energy be negative? If so, why?]]> 2020-02-04 11:03:27 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440177292 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440178919 Izzy: I think that potential energy can be negative because for example, if the energy is supposed to be measured on the top of the table, and the object is on the floor, the potential energy is negative since the height is under the top of the table. ]]> 2020-02-04 11:08:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440178919 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440178979 What is the difference between potential energy and gravitational potential energy? ]]> 2020-02-04 11:08:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440178979 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440181056 what measurements can the kinetic energy be calculated by?]]> 2020-02-04 11:15:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440181056 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440181626 Izzy: The difference between potential energy and gravitational potential energy is that potential energy is the energy held inside an object. Gravitational potential energy is the energy of an object that is being pulled by the force of gravity.]]> 2020-02-04 11:16:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440181626 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440182162 Siya: Kinetic energy is measured by joules. ]]> 2020-02-04 11:18:22 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440182162 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440691846 Christina: this is a repeated question and not related to our topic]]> 2020-02-05 01:40:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440691846 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440692440 Witty: increased potential energy will increase the amount of KE, so more mass and a greater starting height will both result in higher KE]]> 2020-02-05 01:42:19 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440692440 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440693125 Ken: as an object starts moving the potential energy is released as kinetic energy. Think about stretching a rubber band, when you do this you are storing energy, when you release it, it will shoot forward as the stored energy becomes movement.]]> 2020-02-05 01:44:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440693125 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440693571 Alex: If you have something that is falling due to gravity, at any point before it hits the ground it will have both PE (because it still has height) and KE (because it is moving). Halfway down the PE will be equal to the KE.]]> 2020-02-05 01:46:31 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440693571 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694376 Alex: Yes, planets have PE due to the gravitational pull of the sun. Light is kinetic energy caused by the transformation of other types of energy into light (eg. electrical or chemical energy can both become light).]]> 2020-02-05 01:49:37 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694376 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694697 Jessica: heat and kinetic energy are directly related, as increased movement increases heat (think of the particles in a solid, liquid and gas state and how they move for example)]]> 2020-02-05 01:50:49 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694697 2115554_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694725 When we are walking up a hill we have potential energy and when we slide off that hill, that's kinetic energy but if I was on a treadmill and I was running on it, does that count as kinetic energy? ]]> 2020-02-05 01:50:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694725 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694994 Jessica: yes, we use potential energy from the food that we store to move our bodies. We use kinetic energy every time we use electricity. Almost everything we do or use involves energy conversions.]]> 2020-02-05 01:52:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440694994 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440695179 Alex, your answer about friction has already been answered here and in the video I posted yesterday]]> 2020-02-05 01:52:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440695179 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440697032 Anusha and Siya: the skater can't suddenly go to a higher point than his starting point, in 7b, the amount of energy he would need to reach the top of the left side would be more than the potential energy he started with. Energy can't be created, he only has enough potential energy to reach the equal height on the left hand side, or even lower than that if some of his PE is converted into thermal energy as he skates. The concept of not gaining energy during motion is shown nicely in the video I shared yesterday with the bowling ball.]]> 2020-02-05 01:58:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440697032 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440698178 Ms Pringle, what does radiant energy mean? I know you put it in the science notebook, but I still don't quite get it. ]]> 2020-02-05 02:02:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440698178 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440699783 Izzy: good questions with a complicated answer, thanks for your correct answer Siya. Yes, PE can be negative if you need to add energy to get it to move to the starting point of your investigation (as a scientist, you can choose what point you are measuring from), in other words, if you were calculating the movement of a ball along a table, and it fell off during your experiment, you'd need to get it back to the starting position by picking it back up to the start. Don't worry about negative values for now though, just consider that if it's not moving, at a height of zero, the PE and KE will both be zero. ]]> 2020-02-05 02:07:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440699783 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440700959 Christina: yes, any movement is counted as kinetic energy. When you run on a treadmill, the potential (stored) energy that allows you to run comes from your food and is stored in your body, while the treadmill is converting electrical energy to movement of the treadmill. ]]> 2020-02-05 02:10:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440700959 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440701672 Izzy: Radiant energy is the scientific term for energy from the sun. Chemical reactions cause the sun to give off waves of radiation (sunlight) that travel towards the Earth. ]]> 2020-02-05 02:12:55 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440701672 2191162 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440711457 Is the total energy a combination of PE and KE energy?]]> 2020-02-05 02:40:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440711457 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440712365 When we are calculating the total energy, is it always kinetic energy + potential energy? Are there any other formulas?]]> 2020-02-05 02:44:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440712365 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440713465 Satyadeep: Yes, the formula for calculating the total energy is Potential energy + Kinetic energy.]]> 2020-02-05 02:48:33 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440713465 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440713495 When we drop a ball from a high distance, does it start with potential energy and then transferring into kinetic energy and then finally when the ball drops to the ground, it turns to heat and sound energy? I am not sure about this.]]> 2020-02-05 02:48:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440713495 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440714353 Sunny: Yes, when you drop a ball from a high distance, it starts with potential energy and then slowly decreasing the potential energy, menawhile, increasing the kinetic energy. And when it hits the ground the total energy becomes the heat and sound energy]]> 2020-02-05 02:51:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440714353 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440719422 Ms. Pringle, is it okay if we have two screenshots for the playground activity? Like two different tracks.]]> 2020-02-05 03:11:42 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440719422 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440721074 Is potential energy solely caused by the height or position of the object? Are there any other factors that contribute to potential energy?]]> 2020-02-05 03:18:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440721074 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440729399 What are some other examples related to elastic energy? is the only way elastic energy is transmitted through a rubber band?]]> 2020-02-05 03:50:29 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440729399 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440731006 Sunny: Total energy is always PE + KE, however, you will learn that there are different types of energy, so the KE (when there is friction) can include both movement and thermal energy. Thermal energy is a type of kinetic energy, as it involves moving particles. So total energy in this example would be = PE + (motion KE + thermal KE)]]> 2020-02-05 03:56:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440731006 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440731598 Is elastic energy belonging to one kind of strain energy?]]> 2020-02-05 03:59:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440731598 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440731644 Sunny: yes, as Karsten said, as the ball keeps bouncing, the amount of energy released to the surroundings will increase, until it has converted all of its motion into thermal energy. ]]> 2020-02-05 03:59:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440731644 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440732358 Izzy: yes, two screenshots are fine]]> 2020-02-05 04:02:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440732358 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440732530 Siya: Elastic energy is energy stored as a result of applying a force to deform an elastic object. The deformation could involve compressing, stretching or twisting the object.The deformation could involve compressing, stretching or twisting the object. An example would be stretching a rubber band (the one you say) or, a bouncy ball, compressed at the moment it bounces off a brick wall.]]> 2020-02-05 04:03:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440732530 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440732933 Edward, there are a few types of potential energy: ]]> 2020-02-05 04:04:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440732933 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440733454 Siya and Sunny: elastic energy is any potential energy that is created when something is stretched (and can bounce back to the start). An elastic band, an exercise band, a spring, and an archery bow are all examples of this. Thanks for your definition Sunny.]]> 2020-02-05 04:06:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440733454 2176781 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440734516 Why would friction and mass affect the potential and kinetic energy?]]> 2020-02-05 04:10:58 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440734516 2185951 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735010 How are velocity and kenetic energy related to each other and how do they work together?]]> 2020-02-05 04:13:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735010 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735330 Jun and Abir: these questions have already been asked and answered]]> 2020-02-05 04:14:37 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735330 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735534 Updated Padlet Participation scores: link to spreadsheet]]> 2020-02-05 04:15:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735534 2176781 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735862 How does kinetic and potential energy affect our life?]]> 2020-02-05 04:17:18 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735862 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735935 Please note that I will be entering a work habits grade as Consistent or Inconsistent in Hapara this weekend based on your interactions this week, a score of 4 or 5 means you've done an excellent job, a score of 3 means you done the minimum expected of you, below 3 means you haven't been participating or interacting enough. I will update the spreadsheet again tomorrow at 12. ]]> 2020-02-05 04:17:40 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735935 2176781 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735986 2020-02-05 04:17:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440735986 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440736065 If any of you see your friends have a red block next to their name, please remind them to do their work, as I will be emailing parents tomorrow if they haven't posted any questions or answers this week. ]]> 2020-02-05 04:18:22 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440736065 2185951 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440738560 At which point is potential energy at its greatest?]]> 2020-02-05 04:29:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440738560 2120703_19 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440739713 Abir: Potential energy is at its greatest when the object is at its highest point.]]> 2020-02-05 04:35:46 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440739713 2120703_19 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440741145 Is chemical energy the type of energy that is used to break bonds and create bonds? ]]> 2020-02-05 04:43:00 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440741145 2185951 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440741932 How about kenetic energy? Whens that at its highest?]]> 2020-02-05 04:47:03 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440741932 2120703_19 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440742488 Jessica: No, kinetic energy is at it's greatest when there is the most movement.]]> 2020-02-05 04:49:33 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440742488 2102195_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440742910 Does thermal energy rely on KE and PE?]]> 2020-02-05 04:51:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440742910 2155821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440743974 Daanya: No thermal energy does not rely on KE and PE.Thermal energy rely's on how much the skater skates because if the skater skates more, then more friction is created and if more friction is created then you have more thermal energy.]]> 2020-02-05 04:57:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440743974 2185931 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440748452 When some energy are transformed and became thermal energy, can they be turned back?
(after turning back PE+KE=Total energy amount)]]> 2020-02-05 05:25:19 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440748452 2115554_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440749685 Evie- In addition, kinetic energy is at it's greatest when the movement is the greatest. Also the more mass and speed of an object, the more kinetic energy there is. ]]> 2020-02-05 05:33:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440749685 2138062_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440752056 Evie- I agree ]]> 2020-02-05 05:49:52 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440752056 2172143 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440752958 can potential energy and kinetic energy increase at the same time?]]> 2020-02-05 05:56:04 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440752958 2138062_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440753105 Jasmine- No PE and KE cannot increase at the same time, only one can increase while the other decrease because KE occurs when the object is showing movement while PE occurs when the object is in position. ]]> 2020-02-05 05:56:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440753105 2191033 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440753256 Can thermal energy go up the same time as kinetic energy goes up?]]> 2020-02-05 05:57:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440753256 2155821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440754327 Abir: Kinetic energy is at its greatest when the object is at its lowest point.]]> 2020-02-05 06:05:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440754327 2138062_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440754527 What is elastic energy? and how is it related to potential energy and kinetic energy? ]]> 2020-02-05 06:07:12 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440754527 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440754860 Michelle QIN: Elastic energy occurs when objects are impermanently compressed, stretched or generally deformed in any manner. Potential energy can transfer into other forms of energy, like kinetic energy. For example, a rubber band that is stretched has elastic potential energy, because when it is been released, the rubber band will spring back toward its resting state, transferring the potential energy to kinetic energy in the process. ]]> 2020-02-05 06:09:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440754860 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440755000 Is potential energy in every situation where any type of energy can be made?]]> 2020-02-05 06:10:49 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440755000 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440755210 What occurs when potential energy converts into kinetic energy?]]> 2020-02-05 06:12:31 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440755210 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440755702 Dylan: What is the context of the conversion? Are you referencing the skate track example?]]> 2020-02-05 06:16:34 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440755702 213290_9 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440756003 Are all types of energy (thermal, chemical, etc.) a form of kinetic or potential energy?]]> 2020-02-05 06:19:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440756003 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440756573 Lindsey: No, they are different individual types of energy. All types of energy are made from different processes, so some energy aren't a form of other types of energy.]]> 2020-02-05 06:23:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440756573 2191804 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440759267 Man-Kiu CHU if there is no potential energy we can't even move, because potential energy transform into kinetic energy, and kinetic energy let us move.]]> 2020-02-05 06:44:49 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440759267 2127281 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440770901 What is the energy conversion when you launch a space craft?]]> 2020-02-05 07:42:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440770901 219140_4 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440778939 Maryse how is that related to what we are learning?]]> 2020-02-05 08:10:56 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440778939 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440792360 When is kinetic energy at it's highest? -Manas]]> 2020-02-05 08:56:35 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440792360 2130231_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440794401 Manas: Usually kinetic energy is at its highest when its at the lowest points, for example in the skate ramp, when its at the lowest point of the ramp the kinetic energy will be really high.]]> 2020-02-05 09:03:52 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440794401 2190923_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440817322 is eating an example of potential energy as it is stored? If yes, does that mean if we exercise it converts into kinetic energy? ]]> 2020-02-05 10:06:02 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440817322 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440826967 Ms Pringle, will we get to know our grades for the PHET worksheets #1 and #2?]]> 2020-02-05 10:34:56 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440826967 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440841201 how is thermal energy created?and how is it related to friction?]]> 2020-02-05 11:23:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440841201 2185821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440841657 The one with the anonymous is mine i forgot to sign in, sorry.]]> 2020-02-05 11:25:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440841657 2185821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440843213 What are some examples of potential energy and kinetic energy we use in real life?]]> 2020-02-05 11:30:24 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440843213 2185821 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440844122 Are all types of energy like elastic energy also measured in joules?]]> 2020-02-05 11:33:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440844122 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440846684 Keona:

Walking down stairs.
When you're at the top of the stairs, you have a lot of potential energy.
During walking down, the potential energy becomes kinetic energy.

When you're typing.
When your fingers are hovering above the keys, you have a lot of potential energy.
Whilst you are typing, the potential energy becomes kinetic energy.

]]> 2020-02-05 11:41:10 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440846684 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440848575 Alright possibly stupid question.

If a pencil is on a desk, then technically does it have a lot of potential energy?

A person could potentially pick it up, to make kinetic energy.

But at the same time, nobody might pick up the pencil, so if no one would pick it up would the pencil on a desk have potential energy???

????
Because a person could or could not pick up the pencil, if there is a pencil on a desk that no one who EVER pick up then would it have potential energy? (Not counting wind and other things that may move ).

I'm just really curious and want to know.]]> 2020-02-05 11:47:09 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440848575 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440848974 Would kinetic energy made from skating be able to power some things? - Arnold

]]> 2020-02-05 11:48:27 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440848974 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440850786 Basically, if an object could theoretically not move in one situation, but theoretically could move in another situation, would it still have potential energy? I feel like that is the general idea of my question.]]> 2020-02-05 11:53:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440850786 2191524 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440856908 Would there be any potential energy if there's no gravity?]]> 2020-02-05 12:16:27 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440856908 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440861106 Arnold- I think that there would be no potential energy if there was no gravity because potenital energy is the the energy stored in an object and gravity is what keeps those things stable. If gravity wasn't there to keep things stable, potential energy wouldn't exist.]]> 2020-02-05 12:30:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440861106 2157081 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440862084 How is thermal energy created and if there is a lot of thermal energy would that decrease the amount of kinetic energy?]]> 2020-02-05 12:33:27 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440862084 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440872171 Siya- Thermal energy is created when there is friction, friction is what stops the skater and therefore decreases the kinetic energy. -Manas]]> 2020-02-05 12:58:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440872171 2100487_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440892896 Witty, even if the pencil was on the desk and it could only move from human interference wouldn't it still be potential energy? That would be potential energy because "potentially" someone is bound to move it. But your statement is solely based on chance.
- Elizabeth]]> 2020-02-05 13:38:12 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440892896 2100487_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440894873 If the skateboard was superglued onto the ramp (at the top) would it still have potential energy. What I meant was if the skateboard was just stuck there and couldn't move at all.]]> 2020-02-05 13:41:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440894873 2100487_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/440897025 When potential energy increases, does kinetic energy increase at the same time? If not would the potential energy decrease when the kinetic energy increases?]]> 2020-02-05 13:44:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/440897025 2157733 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441288752 Elizabeth - PE and KE can not increase at the same time. One will increase while the other decreases. For example when the skate boarder is at the top of the ramp and still he has no KE but he has a lot of PE. As he moves to the bottom of the ramp he is using the potential energy. ]]> 2020-02-05 23:57:18 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441288752 2157733 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441291234 Why is there thermal energy when I drop the skate boarder from high above the ramp? Can someone explain this deeper?]]> 2020-02-06 00:07:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441291234 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441310437 Evie: Good question! Chemical potential energy is stored in the bonds between atoms. In an exothermic reaction, some of the potential (stored) energy is released into the surroundings (energy out), so the bonds will have less potential energy after the reaction than they had before (more energy was released than stored). The energy is converted into thermal energy, this is why the surroundings get hotter. So in in an exothermic reaction, Chemical Potential Energy becomes Thermal Energy (which is kinetic). The opposite will be true in endothermic reactions, as more kinetic energy (in the form of heat/thermal energy) becomes potential energy stored in the bonds.]]> 2020-02-06 01:15:50 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441310437 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441311559 Daanya: Diya had a good answer to your question, but i think you should scroll up as this has been asked a few times. Thermal energy is a type of kinetic energy, the transfer from kinetic energy as motion into thermal energy depends on friction. PE and thermal energy are not related in this example of the skater, but would be in a chemical reaction (see my answer to Evie above)]]> 2020-02-06 01:19:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441311559 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441311971 Alex: in the skater example the energy can't be "turned back", but in a chemical reaction you could reverse the thermal energy back into potential energy if more bonds are made. ]]> 2020-02-06 01:21:12 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441311971 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441313647 Witty and Lindsey: all energy is either potential or kinetic, and any time work is done it involves the transfer of energy from one type/form of energy to another. ]]> 2020-02-06 01:26:07 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441313647 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441314262 Rachel: yes, when we eat, we store energy (potential) when we exercise we release it, this has been answered before]]> 2020-02-06 01:28:03 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441314262 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441314475 Edward: the activities are not even due yet, so sometime next week.]]> 2020-02-06 01:28:50 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441314475 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441314591 Keona: this has been answered multiple times, please scroll up]]> 2020-02-06 01:29:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441314591 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441315765 Witty: your pencil question: if the pencil is not moving and not on the edge of the desk, it has no potential energy, the energy transfer when you pick it up is not the pencil's energy, it is your energy, potential energy in your body is converted into kinetic energy in your muscles as you pick it up. If the pencil falls off the table though, it would have potential energy due to it's height above the floor, which would convert to kinetic energy when it falls off (potential energy in this case is due to position). ]]> 2020-02-06 01:33:08 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441315765 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441316342 Arnold: the energy from skating could only generate a small amount of power in the wheels, as the skater will stop after a short time. If you think of a waterfall though, the falling water is definitely able to power things (hydroelectric power) as this a very strong, continuous force]]> 2020-02-06 01:35:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441316342 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441316849 Arnold and Siya: there is potential energy without gravity, just not in the skater example. There are other other types of potential energy besides gravitational potential energy, eg. chemical, nuclear elastic (scroll up to the picture I added yesterday).]]> 2020-02-06 01:37:02 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441316849 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441317685 Elizabeth: if the skateboard is stuck to the ramp, it's potential energy would be zero, because it has lost its potential to move. In your next question: potential energy and kinetic energy are inversely proportional as you should have seen in the bar graph on your skate track, and as Eleanor explained.. ]]> 2020-02-06 01:39:35 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441317685 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441318615 Eleanor: if you drop the skater through the air, there is still friction because of the air. Air resistance slows falling objects down and causes them to heat up, especially over long distances (from great heights). The air resists their motion and coverts some of their kinetic energy into thermal energy, which is why asteroids or spacecraft entering into our atmosphere burn up/get super hot as they are falling. ]]> 2020-02-06 01:42:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441318615 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441320902 Some great questions yesterday everyone! I'm really glad to see that some of you are taking the time to think deeply about this content; your answers to each other have shown me a good level of understanding and engagement. I encourage you all to read through what has been discussed so far, and to use this forum as a means to ask bigger questions; don't just type the first thing you think of (which has probably been asked multiple times already). I'll share some more info with you tomorrow (day B) about the different types of KE and PE and how conversions take place in different scenarios. ]]> 2020-02-06 01:49:19 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441320902 2186722 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441336546 Thanks Ms Pringle I was really confused]]> 2020-02-06 02:40:40 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441336546 219074_26 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441344845 Ms Pringle, does kinetic energy make a object faster or slower?]]> 2020-02-06 03:11:23 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441344845 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441347461 Ankul, neither, kinetic energy is the amount of movement an object is experiencing]]> 2020-02-06 03:21:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441347461 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441348239 IMPORTANT: If any of you are in contact with the following people via any messaging system, please ask them to email me TODAY to let me know why they have been absent/not working this week: 701: Vivan, Edison, Kaitlyn, Max, Willman. 702: Micheal, William. 703: Brandon, Saaransh, Hazel, Ruby, Grace. All of their parents will be getting emails today from me. ]]> 2020-02-06 03:24:05 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441348239 2186332 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441348481 Is radioactive one example of nuclear energy? And can nuclear energy transfer to electrical energy?]]> 2020-02-06 03:24:53 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441348481 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441358265 Is nuclear energy a good alternative for fossil fuel? ]]> 2020-02-06 04:06:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441358265 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441361100 Here is your participation score so far. I will check for the last time tomorrow and then enter a grade of Consistent or Inconsistent as a participation grade for week 1. If you have a 5: you are awesome! Thank you for your hard work. If you have a 4: great job so far! If you have 3: you have done the bare minimum, repeated questions or haven't given any scientifically valid answers to another student, try get your score up! If you have 2 or below: no effort, you will get an inconsistent grade if there is no improvement by tomorrow afternoon. ]]> 2020-02-06 04:21:49 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441361100 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441361636 Sunny and Isabella: yes, radioactive energy is transferred into electrical energy in nuclear power plants in a process called nuclear fission. It is an excellent, clean source of energy and much better for the planet than fossil fuels. ]]> 2020-02-06 04:24:51 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441361636 2123542_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441362803 How is kinetic energy related to potential energy?]]> 2020-02-06 04:31:24 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441362803 2120703_19 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441362877 Is radiant energy and solar energy related? If so, how and in what way?]]> 2020-02-06 04:31:51 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441362877 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441363235 Everyone please note: you are expected to work on science EVERY B DAY, which means you should have completed two days of work by now, as outlined in this document. The instructions for what to do each day are clearly laid out, so you shouldn't wait until Friday every week and rush through the work, if you are trying to do this you have not read the instructions and I have emailed your parents to say you have done NO science for four days. The later submission date is only to allow students who are outside Hong Kong an allowance for time differences or Google access problems. ]]> 2020-02-06 04:34:08 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441363235 2123542_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441363761 what does potential energy depend on]]> 2020-02-06 04:37:52 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441363761 2191033 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441364631 Why is Radient energy a kinetic energy?]]> 2020-02-06 04:44:13 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441364631 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441365093 is there any cases that potential energy and kinetic energy are not together ]]> 2020-02-06 04:47:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441365093 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441365178 Please make sure that you don't repeat questions that have already been answered. Those of you who have poor participation so far may want to answer these, the more detail in your answer the better!]]> 2020-02-06 04:47:54 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441365178 2191524 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441365368 If we are sleeping, does that mean that we are storing potential energy]]> 2020-02-06 04:49:00 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441365368 2175211 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366105 Ngai Tat SO: there's kinetic energy when you move during sleeping. ]]> 2020-02-06 04:53:46 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366105 219074_26 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366264 if i live in the 56th floor, does that mean i have a lot of potential energy]]> 2020-02-06 04:54:44 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366264 2191033 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366575 Ankul: No it does not mean that you have a lot of potential energy just because you are living there.]]> 2020-02-06 04:56:27 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366575 219074_26 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366699 no, because i live on the 56th floor, it is very high, so that can mean i have potential energy right?]]> 2020-02-06 04:57:11 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441366699 2175211 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441367119 Ankul SIDANA: yes you have more potential energy than the people who live on the 1st floor]]> 2020-02-06 04:59:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441367119 219074_26 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441367158 ok thanks]]> 2020-02-06 04:59:58 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441367158 2175211 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368160 do all the machines have both KE and PE just control by the on off button? ]]> 2020-02-06 05:05:19 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368160 2191524 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368200 Ankul : I mean you will always have potential energy no matter where you are.]]> 2020-02-06 05:05:32 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368200 2191632_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368212 What happens if PE converts into KE ?]]> 2020-02-06 05:05:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368212 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368806 Ankul: if you are sitting in your apartment, you do not have gravitational potential energy just from living on the higher floor, however, anything you had to drop out of your window would immediately have potential energy to fall 56 stories right before you drop it, and if you and a friend on a lower floor were both dropping something out of your windows, the higher object would have more PE. If that same object is sitting on the floor of your apartment, with no chance of falling, it will have a potential energy of zero, as potential energy can only be gained by changing its location or potential to fall. You, on the other hand, always have potential energy (chemical potential energy) simply because you are alive and you eat, your body stores energy from the food you eat and that energy is what keeps you alive and lets you move. ]]> 2020-02-06 05:08:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441368806 2185251 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441369651 How do we keep track of energy flow thru our bodies?]]> 2020-02-06 05:13:02 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441369651 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441375725 Jun:It affects our life in many different ways, for example: If you are shooting a bow, the more an archer pulls back, the more potential energy will be gained, when the bowstring is released, the arrow moves forward really fast.]]> 2020-02-06 05:47:00 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441375725 2124933 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441375795 when an airplane is in the sky does it store potential energy to land on the ground and when it lands does all the kinetic energy go away right away or does it slowly go away after a few minutes of landing on the ground and moving on the landing road.]]> 2020-02-06 05:47:28 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441375795 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376479 Long Kui : when an object falls, PE will convert into KE.]]> 2020-02-06 05:52:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376479 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376715 Where does the energy for life processes come from?-William]]> 2020-02-06 05:53:51 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376715 2124933 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376784 what about when it lands what happens to the kinetic energy]]> 2020-02-06 05:54:08 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376784 2124933 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376864 when a guy is climbing up a mountain what kind of energy is he using to go up?]]> 2020-02-06 05:54:49 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441376864 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441377340 Saaransh: When a guy is climbing up a mountain, kinetic energy is used, but it starts to become potential energy when it comes to an end. ]]> 2020-02-06 05:57:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441377340 2185931 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441378253 Saaransh: When the person gains altitude, the total energy (potential energy) increases, and potential energy is being transformed into kinetic energy the same time. ]]> 2020-02-06 06:03:07 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441378253 2124933 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441379610 when a guy is driving his car at a speed of 120 kmph and he has to make a sudden brake what happens to all the kinetic energy made from the speed he was driving on and how much thermal energy is made by making that brake?]]> 2020-02-06 06:14:31 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441379610 213290_9 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441380841 Saaransh: the brakes stop the acceleration of the car so, the kinetic energy turns into thermal energy (friction). Because of that, the car decelerates and stops. Energy cannot be created or destroyed, only changed. Therefore, whatever amount of kinetic energy you had is the same amount of thermal energy now.]]> 2020-02-06 06:24:56 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441380841 2124933 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441381125 If a kids dad slaps his kid really hard what happens when the energy from the dads slap goes onto the kids face?]]> 2020-02-06 06:27:22 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441381125 2190923_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441382897 Martin: The potential energy converts to kinetic energy when movement happens. ]]> 2020-02-06 06:40:37 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441382897 2100487_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441384316 When you're breathing do we make kinetic energy?]]> 2020-02-06 06:50:08 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441384316 2175211 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441385968 Elizabeth: no you make potential energy]]> 2020-02-06 07:02:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441385968 219140_4 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441393520 Without friction will the skater keep skating forever?]]> 2020-02-06 07:37:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441393520 2191162 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441394822 Leo: yes it will keep on continuing because there is not anything to stop the skater]]> 2020-02-06 07:42:59 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441394822 2157173 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441395153 Leo: Unless there is an obstacle in front of the skater, the skater will keep on skating.]]> 2020-02-06 07:44:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441395153 2191162 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441397143 Why is the total energy very less when the mass is small?]]> 2020-02-06 07:51:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441397143 2147172 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441412017 Satyadeep - There isn't much total energy when the mass is small because gravity doesn't need a lot of energy to pull down the skater. ]]> 2020-02-06 08:40:45 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441412017 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441417287 So if I am living on the 4th floor, am I having more potential than the 3rd floor? -Ruby]]> 2020-02-06 08:59:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441417287 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441417801 Saaransh: The dad uses energy, from food and water, to slap his son's face, casuing kinetic and sound energy. (The movement of the hand and the sound of the face slap)]]> 2020-02-06 09:01:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441417801 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441418718 Ruby: yes because if you fall then you will have more kinetic energy compare to when you are falling from 3rd floor]]> 2020-02-06 09:05:45 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441418718 2175211 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441420537 if an object doesn't move at all, does it still have potential energy ]]> 2020-02-06 09:12:46 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441420537 2124933 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441424981 Karsten: I asked how is the energy transferred from the dad's hand to the son's face. Did you even read my question how is the food and water the dad drinks and eats related to how the energy is transferred from the dad's hand to the son's face I did not ask about the movement of the dad's hand?]]> 2020-02-06 09:25:16 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441424981 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441430743 If a kids dad slaps his kid really hard what happens when the energy from the dads slap goes onto the kids face?]]> 2020-02-06 09:42:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441430743 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431061 quote unquote]]> 2020-02-06 09:44:03 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431061 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431352 You said the energy from the dad's slap(Kinetic energy) happens when it hit his son's face]]> 2020-02-06 09:44:57 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431352 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431461 Because it dosen't go in the son's face]]> 2020-02-06 09:45:15 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431461 2184012 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431609 Which I anwsered with the kinetic energy turning into sound energy the moment that it hit the son's face]]> 2020-02-06 09:45:43 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441431609 2100897_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441433635 Do objects have potential energy in space? (outside of Earth) - Willman]]> 2020-02-06 09:51:47 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441433635 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441434637 What happens with the energy when you drop a glass bottle on the floor?-Brandon]]> 2020-02-06 09:54:24 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441434637 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441439700 How do you make different loops in the skate park ]]> 2020-02-06 10:08:40 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441439700 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441439853 -Vivan]]> 2020-02-06 10:09:03 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441439853 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441439967 Brandon: The glass bottle has potential energy in it, so when you drop it, it turns into kinetic energy. ]]> 2020-02-06 10:09:24 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441439967 2100897_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441440836 Ruby: If you were to fall off your balcony onto the actual ground floor, you would have more potential energy than the person falling from the 3rd floor because you are higher off the ground than them. But if you're talking about your apartment floor, then no, you don't have more potential energy than them. - Willman ]]> 2020-02-06 10:12:21 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441440836 2101144_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441452933 Hazel: if an object dosen't move, then yes it will be potential energy because it isn't moving. ]]> 2020-02-06 10:50:18 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441452933 2126582 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441458115 Willman: Everything in this world or the universe has potential energy.]]> 2020-02-06 11:07:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441458115 2190923_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441459975 Hazel: if an object doesn't move, there will be no kinetic energy instead it will have potential energy because when it doesn't move, the energy is stored.]]> 2020-02-06 11:14:03 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441459975 2190923_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441461074 Willman: There are energy in space too so yes it has potential energy. But it might be different kinds of potential energy.]]> 2020-02-06 11:17:33 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441461074 2100897_3 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441475944 When a pendulum is swinging, when is the kinetic energy at its greatest point? - Willman]]> 2020-02-06 12:03:42 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441475944 2127281 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441476367 Fung Leo Chan: Since we are learning about potential and kinetic energy, of course it is related. The fuel on the rocket provides kinetic energy that shoots the rocket out into space. When the rocket is high above ground, kinetic turns to potential. I hope this answers your question-]]> 2020-02-06 12:05:19 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441476367 2168152 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441483707 Willman, The kinetic energy is at its greatest point when the pendulum is at its lowest point because that is where the pendulum is moving the fastest.]]> 2020-02-06 12:31:01 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441483707 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441935453 Arnold and Hazel: you will use less of your stored energy during sleeping hours, as your body is doing less work]]> 2020-02-07 01:08:14 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441935453 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441935888 Anonymous, please let me know who you are!]]> 2020-02-07 01:09:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441935888 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441936503 Lindsey: excellent answer to Saaransh's question about the car!!]]> 2020-02-07 01:11:26 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441936503 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441937831 Elizabeth and Hazel: breathing involves moving muscles in your chest, your body uses energy to do this, it is kinetic energy (movement), your body uses your energy stores in your muscles to do this. ]]> 2020-02-07 01:15:58 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441937831 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441938424 Ruby: please look at my answer to Ankul above about potential energy on different floors, as it doesn't apply if you are just sitting in your apartment. ]]> 2020-02-07 01:18:09 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441938424 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441940713 Saaransh and Karsten: when you hit something, you transfer the momentum or force, from one object to another. In your example, this would result in both people feeling the force of an object (reaction force) and some energy being transferred into heat and sound. An easier example would be to think of two cars colliding, the force of the impact stops their forward movement; some of the kinetic energy is transferred in an opposing force, which may push the cars away from each other, some of the force/energy will cause the metal of the cars to bend, and some of the energy will be transferred into sound (loud bang), and heat from the friction between the wheels and the road, and the two cars. ]]> 2020-02-07 01:25:47 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441940713 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441942009 Willman and Alex: if something in space is within the gravitational pull of another object, then it has potential energy, everything in our solar system has potential energy because of the gravitational pull of the sun. The amount of potential energy it has would depend on it's distance to the sun or any other object.]]> 2020-02-07 01:29:39 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441942009 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441942633 Hazel and Jessica: an object that is not moving and is lying on the floor can have zero energy (no potential energy)]]> 2020-02-07 01:31:38 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441942633 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441947075 Please note: if you did not sign in or put your name next to your post, you haven't been credited for that post, you will need to screenshot it and then post it as a picture here once you have signed in or email it to me. ]]> 2020-02-07 01:45:48 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441947075 219140_4 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441973699 When we go to playground or friction in the energy skate park there is a slider for friction so where should the slider be to have the amount of friction we encounter in real life.]]> 2020-02-07 03:24:07 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441973699 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441975921 Leo: I would assume that in the middle of the slider is what is in real life. The slider goes from "none" to "lots" so probably like "usual" would be in the middle. I'm really just assuming here.]]> 2020-02-07 03:32:08 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441975921 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441976302 Does friction depend on what type of surface you are on? So for example, if I were to skate on a surface made out of rock and a surface made out of wood, would the friction increase or decrease at exactly the same rate?]]> 2020-02-07 03:33:30 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441976302 219140_4 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441979262 Edward- friction does depend on what type of surface you are on, the smoother the surface the less friction it has also I don't believe friction decrease or increase, I think friction decreases our speed but I think it stays the same.]]> 2020-02-07 03:44:02 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441979262 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441980753 I see, so friction is a constant rate?]]> 2020-02-07 03:50:46 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441980753 216405_15 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441981811 In addition, how do we do Friday's PHET worksheet? Do we make a copy of the document and then do it? Currently the document is on view only.]]> 2020-02-07 03:54:47 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441981811 2190982_2 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441985593 sorry one of the anonymous was me, i just signed in]]> 2020-02-07 04:12:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441985593 2185251 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441987805 Why does swing your legs on a swing help you move and never stop?]]> 2020-02-07 04:23:41 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441987805 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441989241 Leo and Edward: the amount of friction would depend on what the surface was made of (as you said Edward), putting the slider in the middle just represents a moderate amount of friction, moving the slider down means it's more slippery, moving it up means it's more rough. In this experience you can change the amount of of friction since it's a simulation. In real life you could change the amount of friction by either by putting water/ice/oil on it (less friction) or putting sand/salt/an adhesive on it (more friction). You can obviously also change it by rebuilding it from a different material. ]]> 2020-02-07 04:31:31 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441989241 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441989760 Edward:I see you were able to open the document. It is only for Tuesday, if you want to start it now you can, as long as you have finished your notebook updates. You will however need to wait for my video explaining the energy conversions on the last table on page 2, as this is Tuesday's work. ]]> 2020-02-07 04:34:36 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441989760 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/441991123 Micheal: when you move your legs you are pushing your mass forward slightly (when you straighten your legs) and backwards slightly (when you bend your legs) this change of mass in the direction of your movement helps to speed up the movement (fighting gravity) since force is dependant on mass. Here is a short article that explains it in more detail. You will however constantly be slowed down due to air resistance and gravity pulling you down, so eventually you will run out of potential energy and need to push off the ground again to give you more starting energy. ]]> 2020-02-07 04:41:20 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/441991123 cpringle13 https://padlet.com/cpringle13/ofnk45zhvlda/wish/442015086 Please note you no longer have access to the scoresheet, you will get viewing rights again next week once some settings have been changed. All participation grades for the week are now set and no further changes will be made. ]]> 2020-02-07 07:30:24 UTC https://padlet.com/cpringle13/ofnk45zhvlda/wish/442015086