click below
click below
Normal Size Small Size show me how
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. |