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vocab - science
| Term | Definition |
|---|---|
| position | an object's distance and direction from reference point |
| motion | the process of changing position |
| reference | the starting point you choose to desire, location, or position of an object |
| displacement | the difference between the initial, or starting position and the final position |
| speed | a measure of the distance an object travels in a given amount of time |
| velocity | the speed and direction, something moving |
| vector | quantity that has both magnitude and direction |
| acceleration | a measure of the change in velocity during a period of time |
| force | a push or a pull of an object |
| contact force | a push or pull on one object by another object that is touching it |
| newtons 2nd law | law that states that the acceleration of an object is equal to the net force exerted on the object's divided by the objects mass |
| friction | a contact force that resists the sliding motion of two surfaces that are touching |
| free- body diagram | simple model to understand what will happen to an object due to a force |
| net force | combination of all forces acting on an object |
| newtons 1st law | an object at rest will stay at rest, and an object in motion will stay in motion unless a force acts on thee subject |
Created by:
user-2012120