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Question | Answer |
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acceleration | a change in speed or direction,depends on the mass of an object and th force pushing or pulling the object. |
average speed | describes the movement for an entire trip by dividing distance by measured time. |
force | a push or pull,mass times acceleration. |
friction | the push or pull that opposes motion when two touching surfaces are sliding against eachother. |
gravity | a pull that every object exerts on every object and that pulls all things toward earth in the same way. |
inertia | resistance to a change in motion. |
mass | the amount of matter in an object. |
scientific law | a theory about the natural world that has been tested many times and produces the same results. |
weight | measure of how much earth's gravity pulls down on an object. |