| A | B |
|---|
| speed | distance divided by the time of travel |
| 1st Law of Motion | objects at rest remain at rest, objects in motion remain in motion, unless acted un by an unbalanced force |
| unbalanced | forces on an object that do NOT cancel out |
| friction | force that opposes motion |
| acceleration | rate of change of velocity |
| 2nd Law of Motion | F= ma |
| 3rd Law of Motion | for every action there is an equal and opposite reaction |
| displacement | distance and direction between starting and ending points |
| balanced | forces on an object that cancel each other out |
| force | a push or a pull |
| velocity | rate of change of displacement |
