| A | B |
| displacement | difference between initial position and final position |
| motion | process of changing position |
| position | object's distance and direction from a reference point |
| reference point | starting point you choose to describe the location or position, of an object |
| average speed | total distance divided by time |
| constant speed | rate of change of position in which the same distance is traveled each second |
| instantaneous speed | speed at a specific instant in time |
| speed | distance an object travels per unit of time |
| velocity | speed and direction of a moving object |
| distance | the length of a path |