| A | B |
|---|
| 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 |
| meter | the basic SI unit of length |
| speed | the distance an object changes in one unit of time |
| velocity | speed in a given direction |
| acceleration | the rate at which velocity changes |
| slope | the steepness of a line on a graph |
| constant speed | the speed is the same at all times during the objects motion |
