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Multimedia resources for K-12 classroom instruction and teacher professional development

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When the roller coaster starts flying down the hill, it gains kinetic energy and loses potential energy. At the bottom of the lift hill, the train's kinetic energy is at the highest point it'll be on the track, enough to push it through the succession of smaller hills and turns.

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How fast an object travels.

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A force that draws two objects together

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A roller coaster is a  machine that uses gravity and inertia to send a train of cars along a winding track. This combination of gravity and inertia, along with g-forces and acceleration give the body certain sensations as the coaster moves up, down, and around the track.

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 A combination of speed and the direction in which an object travels.

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Energy that a body possesses of being in motion.

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Is how quickly an object speeds up, slows down or changes direction.

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Is the speed needed at the top of a loop for a car to make it through the loop without falling off the track.

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Any push or pull

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A force caused by a rubbing motion between two objects.

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 Short for gravitational force. The force exerted on an object by the Earth's gravity at sea level.

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The energy possessed by a body of its position relative to others.

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The acceleration caused by Earth's gravity at sea level. Is equal to 9.81 m/sec^2 (32.2 ft/sec^2).