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motion+momentum
| Term | Definition |
|---|---|
| acceleration | equals the change in velocity divided by the time for the change to take place; occurs when an object speeds up, slows down, or turns. |
| average speed | equals the total distance traveled divided by the total time taken to travel the distance. |
| displacement | he moving of something from its place or position. |
| inertia | tendency of an object to resist a change in its motion. |
| instantaneous speed | the speed of an object at one instant of time. |
| law of conservation of momentum | state that the total momentum of object that collide with each other is the same before and after the collision. |
| mass | amount of matter in an object. |
| momentum | a measure of how difficult it is to stop a moving object; equals the product of mass and velocity. |
| speed | equals the distance traveled divided by the time it take to travel that distance |
| velocity | speed and direction of a moving object. |