| A | B | 
| Motion | when an object changes its position relative to a reference point. | 
| Distance | how far an object has moved | 
| Displacement | distance and direction of an object's change of position from a starting point. | 
| Speed | distance an object travels per unit of time | 
| Rate | any change over time. | 
| Speed equation | V=distance/time | 
| Constant speed | speed that doesn't change over time. | 
| Average speed | speed of motion when speed is changing. | 
| Average speed equation | total distance/total time | 
| Instantaneous speed | speed at any given point in time. | 
| Graph-distance | plot on vertical axis | 
| Graph-time | plot on horizontal axis | 
| Velocity | speed AND direction of an objects motion. |