| A | B |
|---|
| reference point | place or object used for comparision |
| motion | position changes compared to another object |
| Speed = | distance divided by time |
| Instantaneous Speed | Speed at a given moment |
| average speed = | total distance divided by total time |
| velocity | speed and direction of an object |
| slope | steepness |
| acceleration | rate at which velocity chagnes; (final speed - beginning speed) / time |
| object accelerates | whenever its speed changes or the direction changes |
| SI unit of length | meter |
