click below
click below
Normal Size Small Size show me how
motion & forces
| Term | Definition |
|---|---|
| position | decribes the location of an object |
| reference point | is a location to which you compare other location |
| motion | is a change in position over time |
| speeed | the distance traveled divided by the time interval during which the motion ourrs |
| vector | is apunanity that has both size & dicection |
| velocity | is the speed in aspecific direction |
| acceleration | is rate at which velocity changes |
| centripetal acceleration | is the acceleration |
| force | is simply a push or a pull |
| net force | the combination of alll the forces acting on an object |
| inertia | is the tendency of allo resist a change in motion |
| gravity | is a force of atraction between oject due to their mass |
| free fall | when gravity is pulling it down & no other forces are acting on it |
| orbit | when it travels around another object in space |