Pass it On
OK, Went
Jack Singer
Jill Player
Jane Dancer
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| 1) |
A small truck is used to apply a force through a distance on a domino. The work done by that force tips the domino over. |
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| 2) |
The first domino falls into another domino, which falls into another. Each successive domino loses gravitational potential energy enabling it to do the work to knock over the next one in the sequence. |
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| 3) |
The last domino falls from a piece of wood. Because it falls farther than the others, it loses more gravitational potential energy. This enables it to do the work to pull a chock out from in front of a toy car. The car rolls down an incline. |
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| 4) |
The car dislodges a billiard ball which rolls down a V-shaped ramp and across the floor. The ball loses gravitational potential energy which is converted to kinetic energy in the motion of the ball at the end of the step. |
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| 5) |
After rolling across the floor, the ball strikes an album cover which is connected by a string to a counterweight resting on a lever. The ball's kinetic energy does the work to exert a force through a distance and pull the counterweight off of the lever. |
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| 6) |
With the load removed from it, the lever drops back into its un-lifted position. As the lever's handle falls, it loses gravitational potential energy. This give the handle the ability to do the work needed to press the start button on an iPod. |
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| 7) |
The music player drives a large speaker with a marble balanced on it. When the speaker moves, the marble falls into a funnel which directs it through a series of inclines. |
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| 8) |
After falling from the last incline, the marble from the speaker strikes a pair of marbles resting at the top of an inclined, grooved board. |
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| 9) |
The two marbles begin to follow two different paths, each one dislodging several other marbles as it rolls down the inclined, grooved board. |
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| 10) |
The various marbles fall into holes in the board, each marble filling a hole and allowing the marble behind it to proceed farther in the groove. Eventually, a marble which did not fall in a hole releases the catch on a golf club which has been set up as a lever with an IMA of 0.1667. (Simple Machine Number 1) The gravitational potential energy which the ball lost as it rolled down the incline gave it the energy it needed to do the work to release the catch. |
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| 11) |
Once the lever is released, a counterweight is able to fall, pulling on the handle of the golf club. The potential energy lost by the falling counterweight does work to lift the club and eventually strike a large marble, causing it to roll onto a wooden track. |
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| 12) |
After rolling a short distance along the track, the ball dislodges a pin which holds a piece of thread in place. The marble continues to roll on the wooden track. |
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| 13) |
The thread is attached to a spring which has been stretched. When the thread is released, the elastic potential energy stored in the spring is used to do the work needed to pull the thread out from in front of a large cylinder on a stack of books at a slight incline. With the thread removed, the cylinder begins to roll along the inclined books. |
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