https://padlet.com/acreighton1/yaw16f8s1fgo en-us 2017-10-26 00:45:21 UTC 2023-10-14 10:09:29 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Terminator.png acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200651085 I know that levers are something that is pulled on or weight is put on to activate or move something.]]> 2017-10-26 00:46:23 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200651085 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200651499 Levers are the simplest of all machines

All levers have three main points
- The place where effort is applied (E)
- The fixed point where the lever rotates from called the fulcrum (P)
- The place where the thing that is moved is located (L)]]> 2017-10-26 00:49:14 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200651499 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656327 2017-10-26 01:17:54 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656327 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656399 2017-10-26 01:18:20 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656399 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656424 2017-10-26 01:18:28 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656424 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656547 2017-10-26 01:19:00 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656547 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656573 2017-10-26 01:19:07 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656573 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656663 2017-10-26 01:19:28 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656663 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656697 2017-10-26 01:19:40 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656697 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656716 2017-10-26 01:19:46 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656716 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656760 2017-10-26 01:19:53 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/200656760 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202749813 -  Friction is a force of resistance to the motion of an object.
- Friction happens when two surfaces touch each other. ]]> 2017-11-02 00:54:31 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202749813 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202749991 -  In machines friction occurs when two surfaces slide or roll on each other
- Some parts of a machine are designed to overcome friction. 
Eg - Wheels, Ball Bearings
- Some machines use oil to lessen friction. ]]> 2017-11-02 00:55:36 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202749991 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202751787 Places where friction takes place
- Brakes when you pull handle wire puts rubber on tire and tire stops
- Seat when you sit on the seat.
- Chain and the sprocket when the chain goes around.]]> 2017-11-02 01:06:50 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202751787 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752653 2017-11-02 01:12:27 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752653 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752691 2017-11-02 01:12:33 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752691 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752837 2017-11-02 01:13:29 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752837 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752914 2017-11-02 01:13:59 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202752914 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202753172 2017-11-02 01:15:36 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/202753172 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205103733 - When to surfaces rub on each other, the resulting friction causes the surface molecules to vibrate.
This causes heat.]]> 2017-11-09 00:53:29 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205103733 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205104725 - Oils and lubricant on metal parts help to
- Reduce the amount of friction by allowing the parts to slide smoothly
- Absorb some of the heat produced by friction and spread it around.]]> 2017-11-09 01:00:43 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205104725 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205106114 - Bike tires come in different shapes and sizes.
- Road tires are smooth and thin - this reduces friction and makes the Tyre go faster.
- Mountain bike tires are big to create more friction to be able to climb objects, dirt and terrain easier.]]> 2017-11-09 01:10:19 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205106114 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205106834 1. When two surfaces rub what is created? Heat is created when two surfaces rub
2. What would happen if you put oil on the brake pads on your bike? The brakes would do nothing or near to nothing to stop the bike tire from spinning.
3. Why is heat caused when two surfaces rub on each other? Heat is caused because the molecules rub together and cause friction which then again causes heat.]]> 2017-11-09 01:15:11 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/205106834 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/207489271 2017-11-16 01:03:05 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/207489271 acreighton1 https://padlet.com/acreighton1/yaw16f8s1fgo/wish/207489393 Static: Static friction works when for example you rub your socks on the trampoline or carpet or even touching an old tv

Sliding: Sliding friction happens when for example you rub your hands together.

Rolling: Rolling friction happen for example ball bearings roll in machine.

Fluid: Fluid friction happens when fluid rubs on something. ]]> 2017-11-16 01:03:52 UTC https://padlet.com/acreighton1/yaw16f8s1fgo/wish/207489393