speed, is distance traveled divided by the time it tsked to get there.., rotation, spining, position, is the place where a thing is., acceleration, is speeding up., deceleration, is slowing down., distance, is the separation between two places., vibration, is moving back and forth or up and down., velocity, is speed in given direction., air resistance, is the force of air particles pushing on something in motion., friction, is a force between two surface moving past each other., mass, is how much matter a thing is made of., matter, is what people usually mean by the word "stuff"., gravity, is the force of attraction between two masses., force, is a push or a pull., motion, is change of position.

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