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motion
unite 1
| Term | Definition |
|---|---|
| position | describes the location of a object |
| reference point | is the location to which you compare other locations |
| motion | is change in position over time |
| speed | an object is a measure of how far somthing moves in a giving ammount of time |
| vector | is a quantity that has both size and direction |
| velocity | is speed in a specific direction |
| acceleration | is the rate at which velocity changes |
| centripetal acceleration | acceleration in a circular motion |
| force | a simply push or pull |
| net force | the combination of all forces acting on an object |
| inertia | is the tendency of all objects to resist a change in motion |
| gravity | is a force of attraction between objects due to their mass |
| free fall | when gravity is pulling it down and no other forces are acting on it |
| orbit | when it travels around another object in space |
| fluid | is any material that can flow and that takes the shape of its container |
| pressure | is the measure of how much force is acting on a given area |
| atmospheric pressure | the pressure caused by the weight of the atmoshere |
| buoyant force | is an upward force that fluids exert on all matter |
| archimedes principle | states that the buoyant force of acting on an object in a fluid is an upward force equal to the wight of fluid that a object displaces |