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Physical Science
| Term | Definition |
|---|---|
| force | push or pull |
| distance | how far an object has moved |
| speed | rate of change in position |
| average speed | total distance divided by total time |
| instantaneous speed | speed at any point of time |
| inertia | tendency of an object to resist any change in motion |
| centrifugal force | imaginary force that feels like it pulls outward |
| centripetal force | net force exerted toward the center of a circle |
| machine | device that makes work easier |
| simple machine | device that does work with only 1 movement |
| complex machine | combination of machines |
| input force | force applied to the machine |
| output force | force applied by the machine |
| output distance | how far the resistance moves |
| input | effort |
| output | resistance |
| work input | what we put in |
| work output | what we get out of a machine |
| mechanical advantage | number of times a machine multiplies effort force |
| inclined plane | sloping surface used to raise objects |
| ideal mechanical advantage (IMA) | number of times a machine should multiply force |
| actual mechanical advantage (AMA) | number of times a machine actually multiplies force |
Created by:
Hoffy
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