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vocabulary
| Term | Definition |
|---|---|
| distance | how far an object moves |
| displacement | the distance and direction of an objects change in position from the starting point. |
| speed | the distance an object travels per unit of time. |
| average speed | the total distance traveled divided by the total time of travel. |
| instantaneous speed | speed at a givin point of time. |
| velocity | speed of an object and direction of its motion. |
| acceleration | the rate of change of velocity |
| force | a push or a pull |
| net force | the combination of two forces acting on an object at the same time |
| balanced force | forces on an object that are equal in size and opposite in direction. |
| inertia | the tendancy of an object to resist any change in its motion. |