| A | B |
|---|
| motion | change in position over time |
| speed | how fast an object moves |
| acceleration | change in velocity over time |
| velocity | speed in a specific direction |
| position | an object's location |
| reference point | location to which other locations are compared |
| vector | quantity that has both size and direction |
| relative motion | idea that motion depends on the viewpoint of observer |
