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Position & Motion
Science Review
Term | Definition |
---|---|
Reference point | the starting point you choose to describe location or position of an object. |
Position | an object's distance and direction from a reference point. |
Motion | the process of changing position relative to a reference point. |
Displacement | the difference between the initial position and the final position of an object. |
Speed | a measure of distance an object travels per unit of time. |
Constant speed | the rate of change of position in which the same distance is traveled each second |
Instantaneous speed | speed at a specific instant in time. |
Average speed | the total distance traveled divided by the total time taken to travel that distance. |
Velocity | speed and direction of a moving object. |
Accelaration | a measure of change in velocity during a period of time. |