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Motion/Force Vocab 1
| gravity | a force where two bodies of mass are attracted to each other |
| friction | resistance when the surface of an object moves over another surface |
| inertia | a tendency to do the same or remain unchanged |
| force | a push or pull |
| force = | mass + acceleration |
| balanced force | when two equal forces act on an object. It generally doesn't move. |
| unbalanced force | when unequal forces causes objects to move |
| work | the amount of energy transferred by a force |