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force and motion
how force affects motions
| velocity | speed in a particular direction |
| force | a push or pull that can change the motion of an object |
| exert | to apply a force |
| friction | a force between an object and the surface it is moving over |
| inter | to reach a conclusion using evidence and reasoning |
| collision | the moment when two objects hit each other |
| velocity | speed in a particular direction |