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Science- Chp.9 Vocab
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Term | Definition |
---|---|
Motion | the state in which one objects distance from another is changing |
Reference Point | a place or object used for comparison to determine if an object is in motion |
International System of Units(SI) | the system of units used by scientists to measure the properties of matter |
Meter | a basic SI unit of length |
Speed | the distance an object travels per unit of time |
Average Speed | overall rate of speed at which an object moves |
Instantaneous Speed | speed of an object at one instant of time |
Velocity | speed in a given direction |
Slope | steepness of a line on a graph |
Acceleration | the rate at which velocity changes |