Kinetic and potential energy simulator

Watch a roller coaster car turn potential energy into kinetic energy and back. Change the heights and mass, and add friction to see energy turn into heat.

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Questions students ask

How do you find the speed at the bottom of a drop?

mgh = ½mv², so v = √(2gh). The mass cancels out.

Where does the energy go with friction?

It is transferred to the surroundings as heat (thermal energy), so the car cannot climb back to its starting height.

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