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Watch the video and answer any two of the following questions: 

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Watch the video and answer any two of the following questions: 

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1.  What did you observe or notice in this video with the flashlight added or taken away?

4. What is similar between the items in the video and the radiometer?  What is different?

5.  What could be a common reason why all devices start and stop?

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Watch the video and answer any two of the following questions. 

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Watch the video and answer any two of the following questions. 

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1. Write your observations.
I observed.......
I wonder.......
I noticed......
2.  What questions do you have about how the rolling can works?

3.  How could you determine what is happening without opening the can?

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1.  How  are the 3 Pendulums similar?

2.  How are they different?

Write your answer below.

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Watch the video and answer the following questions: 

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Watch the video and answer the following questions: 

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1. 1. Write two  observations.
I observed.......
I wonder.......
I noticed......

2.  What questions do you have about this machine?  Write at least one.

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1. Watch the video and record how long the top spins.
2. Type your answer and make an observation. How is Top 2 different from Top 1?

I observed.......
I wonder.......
I noticed......

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1. Watch the video and record how long the top spins.
2. Type your answer and make an observation.

I observed.......
I wonder.......
I noticed......

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Watch the video and answer the following questions: 

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Watch the video and answer the following questions: 

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1. Write your observations about how long it takes Pendulum 3 to stop swinging.
I observed.......
I wonder.......
I noticed......

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Watch the video and answer the following questions: 

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Watch the video and answer the following questions: 

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1. Write your observations about how Pendulum 1 moves until it comes to a rest.
I observed.......
I wonder.......
I noticed......

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Watch the video and answer the following questions: 

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Watch the video and answer the following questions: 

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1. Write your observations about how long it takes Pendulum 2 to stop swinging.
I observed.......
I wonder.......
I noticed......

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I observed that everytime one thing touched another, something was activated and it kept going like that kind of similar to a chain reaction. Another thing that I noticed was how smoothly and successfully the  machine went all the way through the end. One question that I have about this machine is Do you need to use certain materials such as metal to make it run successfully? Another question that I have is When and how was this machine invented?

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I observed that everytime when the flashlight goes near it gets fast. And when you take the flash light little but far away form the thing it gets lower. In that thing there was 3 or 2 square which it was spinning fast when then the flash light got near and when the flashlight go far it go lower. Also if you what to stop that spinning thing you have to take your flashlight far has you can or turn it off and it will stop spinning.  Also I notice that when it was spinning the square had black color or paper on it and it also had white. And also I think that it had wires but it maybe does or maybe not because it cannot move with a flashlight. So has the black and white square thing was moving it also had the stick and it was moving and the it also had tap which it was holding the long stick. Also the when the flash light was on it was going fast and fast. And I also wonder that how did it stop

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I observed that this video was like a chain reaction. I also observed that everything was almost the same color. I wonder how many times it took to perfect this video. An how long it took to think of how to make the video. The video was very satisfying. I noticed that the video was 0:56 seconds, is that how long it took to film the video? Also I wonder whoc ame up with this?

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my bran is herding i wonder how the magnet was going up like that

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I observed that the can is moving because of the push.

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I observed that when the flashlight was added, the tabs in the light bulb start moving faster and faster the more the flashlight stayed there. However, when the flashlight was taken away, I noticed that the tabs started slowing down. I think that a common reason as to why devices start and stop is because they need something to activate them or help them run, and once that activator is taken away, the devices stop. For example, to run, phones need battery, once the battery dies, your phone will turn off until it recharges.

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I observed that each time one thing happened, it caused a chain reaction and made another thing happen. One question I have is that how are all these things happening?

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I observed that magnet pushed and it hit an apple.

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I observed that when each item touches one another, it creates a chain reaction. When it hit, there needed to be like a certain amount of energy. For the item to move. I wonder, if it depends, on how heavy the object is. I notices, for each object it takes certain amount of time. to touch each other.

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i wonder how the light was making that spin

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I observed that when he or she pushed the can roller it went back and forth and it went back and forth 3 or 4 times and then it stopped before it stop has I said that  it went back and forth when he or she push the can roller thing when it came forth it didn't fell in the ground also I notice that it was in straight line going and coming.

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I could determine that there is something inside of that can that has weight and is not too light, and that weight is the cause of why the rolling can doesn't just roll smoothly but there are sort of tiny bumps when it rolls. I observed that there were tiny bumps the can came across as it was rolling and the cause was the weight of what was inside of the can. Another thing that I observed was that the can did not just roll off the table, instead it came to a stop and rolled back where it came from.

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I observed that the different chain reactions had to do with magnets, and in my opinion it was very satisfying. Also, when the magnets were making the different things happen, it ended up being a very long chain reaction which I thought was pretty cool.

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i observed that it like remembered where it stared

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I observe the light energy is pushing the panels to move.

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I observed that one thing leads to another, it is a chain reaction. I also observed that it is very complex. The machine does all that for one small task. A question I have is: How does someone come up with this??

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I observed that when the flashlight was flashed at the light bulb the little tabs on the inside of the light bulb started moving, and turing around. When the flashlight was taken away I noticed that the tabs started to move slower than stopped. I wonder why the flashlight was affecting the tabs. I wonder if this has something to do with kinetic or potential energy.

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I observed that this was a chain reaction. I also observed that the machine was made of potential and kinetic energy in each object. I wonder how the box at the end was floating in the air? I noticed that the first part of the chain reaction was actually upside down because the objects were falling up instead of down.

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I observed that whenever the flashlight was flashed at the light, the light would flash in a sort of way. A common reason why all devices start or stop is energy being added and removed.

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During the video, I noticed that somehow every machine, tool or any gizmo showed and aligned in the video had enough energy to push something else, other then the fan in the beginning, which used electricity to power it, but the rest of them, don't use any electricity which means they get their energy when something hits it or interacts with it, yet at sometimes a weak hit makes a bigger one... which really confused me because you can't just make energy from nowhere, you just transfer it. So I'm really curious on how each object managed to transition just enough energy to the next module, because perpetual motion machines are impossible, so some energy is lost like...In sound energy as we can hear the process unfold, or even friction energy, slowing down anything that rolls, a lot of things actually, are lost while a simple marble moves, so yeah...I'm pretty curious on how it just had enough energy to keep the machine moving.

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I can tell that in the video a chain reaction took place and I noticed for all of this to work they used the help of kinetic and potential energy because when something hit something with force by using kinetic energy it hit something that contained potential energy and as soon as they would touch the potential energy changed into kinetic.

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I observed that every time the flash light get closer the to the light bulb, the thing starts to spin faster. But the further away the light is reflected it slows down. I think the radiometer measure the energy of the light or something. so the the similar is that the more energy the the faster it spins. The am not really sure about the difference.

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I noticed that Pendulum 1 moves very similar to a swing when it was moving because at the beginning when it was first pushed, it started off at a higher level of swinging. However, as time passed it slowed down and was swinging at a lower level/height, and came to an end. Another thing that I noticed is that it only moves backwards and forwards and it is not going in a circle or anything.

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I observed that the can after being pushed started rolling backwards and forwards. The energy is allowing the cup to go backwards are forwards.

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I noticed that the swing is moving fast but it goes slow when it stops.

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I noticed that the way this functioned was similar to the domino effect. One push started to make all of the machines go off one by one, leading to the end goal. I also noticed that in the middle of it, you find out that the beggining part was upside-down the whole time. What I'm wondering is how they got some of the parts to move like that and how much planning it would take to make sure one part lead to the next.

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I noticed that when the flashlight was added, the lightbulb spun faster and when it was taken away it spun slower. I think a common reason that all devices start and stop is that they run out of energy.

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I noticed that the swing moves backwards and forwards after being pushed forward. Eventually, all the energy slows down and the swing comes to a stop.

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I noticed that when the flashlight came near then the lightbulb started spinning faster and as the flashlight was taken away it returned back to being slow.

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I observed that when the flashlight got closer and closer the lightbulb spun faster and when the flashlight was taken away the lightbulb slowed down and stopped spinning. The similarity between the item in the video and a radiometer is that they both detect radiation. Something different is that the object in the video was detecting the light from the flash light. A common reason for devices turning on and off is that it could be because it doesn't detect energy anymore.

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I observed that the swing is moving fast but slow when stop.

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Something during the video that really caught my eye, was when a light was shined, the fan like motor spinned faster and faster...It seemed definitely odd. I kind of have a question on how would it work, like what makes up the fan, and how it even spins when it interacts with light, is it maybe a solar panel that leads directly to the fan? Or maybe even a substance that doesn't really like light and just wants to go away from it, like the north and south poles from a magnet? Either way it's really cool, but really odd and confusing
I think the reason why all devices start or stop is because, they all require something to run on, like this one example needed light to move, once that light is gone, it can't supply the fan thing, but once light is available again, it's up and running, so it always needs it's form of energy, or start point to activate, but once it's gone, nothing will happen...

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I noticed that after the can was pushed lighty, it did not keep rolling forward, it kept rolling back and forth. instead of going in one direction. My question is why does the can move like, that. I have done this, like just done it and came as the same result rolling back and forth. So why does it do that.

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I observed the can kept going back and forth after being pushed. I noticed that this has something to do with the weight and the type of energy the can is producing . I wonder if the kind of table or the force of the push determined if the can was going to go back and forth or if it was going to go staright off.

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I noticed that the swing, after being pushed took a short amount of time to go back in its first position. This is because of one side weighing more than the other.

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I observed that the can is only pushed once and it keeps going forward and backwards by itself. Somethings I wonder about this rolling can are how can it keep going back and forth without anyone pushing it.

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I noticed that the swing going fast and never stops.

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Everytime the flashlight got closer to the bulb, the rod with the tabs holding onto it inside started spinning. The closer it got, the faster it went. This relates to the way things could start working and stop because it shows that when an objects energy or power source is taken away, it stops functioning because it doesn't have the power to.

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I noticed that it is very similar to the one from last time, although it is pushed from the lighter side now. It takes the same amount of time to og back to the normal position.

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They were different and they have a different size and mass.

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I noticed that Pendulum 2 was also going in the same direction as number 1 and they were both going backwards and forwards. However, the second one was also a bigger ball, but it was also tighter because the two poles that were holding it up were right next to it. I observed that once this second one was pushed it slowed down much faster than the first one. My guess as to why it slowed down much faster is because it was heavier since it was a bigger ball and then when there is more weight, it pushes down more.

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I observed that the can moved when it was pushed. I can infer that there is probably something inside the can that is making it roll back and forth. A question that I have of how the can works is how does does it go back and forth? I can determine, without opening the can that there is something inside that is making it roll back and forth.

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I notice that when someone put pushes the pendulum then it swings very high but slowly the pendulum has no more energy left from the push and slows down again and eventually will stop.

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Whenever the flashlight would shine at the light bulb, the tabs inside it would start spinning faster and faster. When the flashlight was taken away, the tabs stopped spinning

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I observed that whenever one thing touches another thing it moves and activate. it is like a chain reaction. Another thing that I noticed was that everytime it hits anywhere it need to be activated so it has to be some type of energy. One question that I have is how long did it took to set up everything and how can it operate when it touches an object than that thing will move?? Another question I have is it hard to make/build/ make it happen successfully??? The video is kind of satisfying and cool.

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I observed that the can was round and it had potential energy stored .  I wonder why the can rolled back if the table wasn't slanted? I noticed that the can was pushed and it rolled forward and backward for a couple of times. How does the can move? Maybe the can has something inside that makes it roll?

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I observed that this pendulum looks different then the first where it swings from side to side but this one swings forwards and backwards. It also has the same reaction because it also swing very high on the first try but later as the energy wears off it also slows down. This pendulum also slowed down faster than the one before probably due to the weight of the ball.

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like it forward and backward. when it was pushed early it was fast than when no body puhsed it more it slowed down. I wonder, why this happens. I notices, that is like a swing, or the like the on and off switch on a fan or something.

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I observed the top went over for like 52.26 seconds.

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During the video, I observed that the can, when pushed would move the way/direction it was pushed....Then back to where it started, then forward, then back and it kept on moving until it stopped, or ran out of energy. I think I know how it could work, it maybe has a section where a ball or several heavy metal balls are rolling , like a ball seal, with some space left inside, so when it's rolling some balls could be going the opposite way, because the inside of the cup, moving is pushing the balls in the seal the other way, then the weight of the balls changes the direction of the cup, so then this keeps on happening once the cup doesn't have any more movement left. I'm curious though on how the cup can move the balls or interact with them...

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They were all similar because they all eventually stopped. They are different because they had different reactions to the push.

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I observed that Pendulum 1 swung back and forth, back and forth until it stopped. It didn't go in any other directions. I wonder what made it stop?

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I wonder what caused the Pendulum 1 to stop moving fast. I think it could be loss of energy, since it kept swaying back and forth it lost all its energy and stopped. I noticed that the Pendulum 1 was only going back and forth. It wasn't going in any other direction.

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I observed that when someone pushed the can, it started rolling, but instead of stopping or rolling off the table, it started rolling back and forth. I think you could find out what's causing the can to do this without opening it by shaking it. I think there's something inside the can that's rolling around inside of it, causing one side to be heavier and roll the opposite way each time.

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I observed that the top went around in a circle a couple of times and eventually made smaller circles until it gotto the middle. It spun for about 50 seconds.

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I wonder why this one didn't low down like the others one did. This pendulum lost very little energy and kept swinging back and forth with only one push like the other ones. Also this pendulum has the same size ball as the second one which stopped swing very quickly.

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I observed that this pendulum was very similar to the second one and maybe it was even the same. However, even though it was similar to the other one, at the end of the video, it was still swinging very fast and at a high level/height. I wonder why it was taking long to slow down. Another thing is I noticed that it was also dropped from the same level as the other ones, so maybe it had something to do with the energy that the ball ha lost previously.

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I observed that Pendulum 1 was launched high and then swung back and forth until it stopped. I wonder if the pendulum would've stopped earlier if it was launched from a closer height. I noticed that the pendulum had potential energy when it was about to be released.

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I observed that the top is going around triangles and so it was here for like 1 minute and 59.26 seconds.

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Something really weird I saw during the video, was that the Pendulum would always make a almost perfect, swing back and fourth, I don't really know how to explain it, but just the first time the Pendulum swings on the left, then the first swing on the right would be with the same exact force as before, the same height and stregnth, which was really weird for me, because energy was lossed, just the swings were smaller, but still on the same ratio, I wonder how it didn't lose any energy during this procsess. But the second cycle, it lost just a tiny bit, I wonder how it managed to conserve that energy...

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I observed that one thing leads to another, it is a chain reaction. I also saw that it is very complicated.

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I observed, there might be magnitnet at the bottom of the metal ball. This is similar to the first one. I wonder, if it would slow does faster if more energy was added. I notices, that this like the first one, and it also swings back and forth. And I wonder if the mass of the ball would effect, the movement.

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I observed that energy was transferred from 1 object to the other. I noticed that it i constantly moving. I wonder how all the energy they used was from 1 ball hitting a fan.

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They were all same because they all only got one push at the beginning of the video but all three of them lost their energy at very different times. For example  the second one lost the energy fastest then the first one lost its energy second but the 3rd one lost very little energy and kept on swinging very high

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The top spun around for a minute. This one is different than the first one because it had a smaller platform to spin on, and it spun for slightly longer on the platform.

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I observed that when someone pushed the ball, it started swinging back and forth. It took longer for it to stop then what it would probably normally take. I think it might have something to do with it hanging on 2 strings on separate poles, or possibly because of the mass of the metal ball.

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I observed the Pendulum 2 going back and forth quickly. I noticed that the Pendulum 2 went faster than the Pendulum 1. I believe this is because the Pendulum 2 has metal circals at the end. I think that they were pulling and pushing the entire Pendulum. I wonder if this is kientic energy or potential energy.

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The three pendulums are similar because they were each only given one push at the beginning of the video. One of the differences is that the first pendulum is different from pendulums two and three, because number one had a smaller ball which meant that it was lighter than two and three. Another difference is that pendulum three never stopped swinging and by the end of the video it was still very high. On the other hand, pendulums one and two were practically done swinging by the end of the video.

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I observed that first it made full circles around the plate that it started spinning in the middle after sometime for about 50 seconds and it was spinning super fast in exactly the middle of the plate.

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I observed that the flashlight is powering the movement of the spinning thing. The devices could've started because they turned light into energy like solar panels.

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I observed that the white string was holding the round steel   thing and it was going fast back and forth and also when he or she hold it and swing it it was going fast and fast like after 10 sec he or she did it was going fast and then it did not stop when it was going slower and slower like it had something in the steel. And after 2min and 10 sec it  was still going and going slow it did not stop going back and forth.

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I observed that this is very very similar to the fist one, maybe the difference is there was more force added to this one. I wonder, what if you added a little energy by little would take the same amount of time to stop, or take longer? I notices in the first one, that at the beginning it already moving a little bit, But in this one, it was still and did not move until the person gave it energy.

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I observed that it takes a pretty long time for Pendulum 2 to stop swinging. It kept swinging, less each time but it took a while for it to stop. There were 2 balls and I noticed that one weighed more than the other, that is why is was dragging the other one along with it.

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I noticed that there was a little more weight on 1 side. why did the can just stop instead of rolling further.

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This pendulum took a bit less time to stop moving, but at the same time, it was moving faster that the first one. It also lasted longer that how it normally would've. It was hanging on a metal rod that was spinning on the rod attached to the base. The bigger ball would swing at the bottom while there was a smaller one at the top. I think the mass of both the big and small ball affected the amount of time it took the pendulum to stop.

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I observed that the Second Pendulum kind of had a symtrical design, with the lines sticking out on the sides and such, like a pattern almost, with the only difference being two metal balls on each ends of a pole, one is bigger then the other. I think this moves via magnets, as the balls are metal, and maybe the bottom part is just on giant magnet, or has a magnet piece, which then makes it move, as when it went to lower swings, it still was moving when it should've stopped but something is moving it...Maybe a magnet...Hmmm

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I observed that pendulum 2 has more weight on it because it has a sphere of weight on top of it. I wonder if the pendulum would have stopped moving earlier if the ball on top of it hadn't been there. The pendulum took a very long time top stop moving.

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I observed that this Pendulum was very diffrent from the first Pendulum but very similar to the second one. I noticed that this Pendulum swung at a diffrent energy. What I mean by that is that the Pendulum was a little faster at diffrent times. for example near the end this Pendulum was still very fast but Pendulum 2 was a bit slower. I wonder if this has created a diffrent energy than the one before.

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This top spun around the cap and only made circles and didn't just go in the middle but kept trying to go in circles and in the middle of the video it started to make semi circles but then went back to full circles.

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I observed that the ball kept swinging. I wonder if the type of string matters in terms of how long it swings. I noticed that the ball used the energy from the little push that the person gave to swing.

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I observed that the top was spinning for sometime around 50 seconds. Another observation that I made is that the top was spinning at a fast speed but towards the end it slowed down, and was making small circles in the middle of the plate.

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The three pendulums are similar because, the move back and forth, when the somebody pushed it, like a swing. One difference is that, the first one used different material than the other 2, and another is I am sure, but they might have stopped at different times. depending one how much energy was given. Also the thing that is swinging could be heavier or lighter it's hard to tell in the second and the third one.

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I observed that the ball swings constantly. I wonder If they need the small ball at the end to keep swinging. I noticed the energy from the persons push was enough to last over a minute of swinging.

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I observed that this pendulum had the same design as the last one. It took a pretty long time to stop spinning. This pendulum seemed to pick up speed as each second passed. While Pendulum 2 went slower as time passed.

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I observed that whenever the flashlight gets closer it spins faster and whenever the flashlight moves away it slows down. The similar is that the more energy the the faster it spins. I think one common reason that something starts and stops is that maybe some type of energy is going on or some type of system is fixed/operated. Solar panels are like that when we go near it, it will light up and when we moves far away the light stops.

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I noticed that during the video they could've used the same Pendulum, as it looks very, very similar to the past one. I saw that this one seemed to make larger swings then the past video and at times almost transitioned between the small and big ball at which part would be swinging, which was really interesting.

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The three Pendulum were diffrent because the first one looked like a triangle and it was going a little slow at the beggining the got faster. The second Pendulum was fast at the beggining but slow at the end. The third Pendulum was slow at the beggining but fast at the end. I think that the weight of the first one was way less than the second and third one. They also might of had diffrent energies.

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I observed that there were balls at the sides of the pendulum and there were little pegs to. I wonder If they need those pegs and balls to retain energy and keep swinging. I noticed that the balls on the side move from forward to back, that might be why it was swinging for so long.

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I really thought that the second pendulum was the same as this one, but in reality, it isn't. It looks the same as the second one, but the difference is that this one doesn't stop swinging, unlike the first and second one. It never lost any energy and looks like it could be swinging for an infinite amount of time if you decide to not stop it.

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I observed that Pendulum 3 is very similar to Pendulum 2 but different from Pendulum 1. I noticed that Pendulum 3 took slightly longer to stop moving. I wonder why this Pendulum took longer to stop moving? I think it was because it was released at a higher height.

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I observed that the top was spinning for about 1 minute and 54 seconds. I noticed that the top was spinning in circles for a few seconds but then it started going into a triangle shaped pattern. After that, it looks like it was going all over the place as if it was spelling something out. Top 1 is different form Top 2 because Top 1 was going smoothly in big circles around the plate and then as it was slowing down, it went in smaller circles towards the middle of the plate. On the other hand, Top 2 was going all over the place by starting off in circles, then going into a triangle and some sloppy form.