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unit 2
lessons 1,2,3
| Question | Answer |
|---|---|
| position | the location of an object |
| reference point | a location to which another location is compared |
| motion | an object's change in position relative to a reference point |
| speed | the distance traveled divided by the time interval during which the motion occured |
| vector | a quantity that has both size and direction |
| velocity | the speed of an object in a particular direction |
| acceleration | the rate at which velocity changes over time; an object accelerates if its speed, direction,or both change |
| centripetal acceleratrion | the acceleration directed toward the center of a circular path |
| force | a push or a pull exerted on an object in order to change the motion of an object |
| net force | the combination of all of the forces acting on an object |
| intertia | the tendency of an object to resist a change in motion unless on outside force actson the object |
| gravity | the force of attraction between objects that is due to their masses |
| free fall | the motion of a body when only the force of gravity is acting on the body |
| orbit | the path that a body follows as it travels around another body in space |
Created by:
18beckerj1008
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