| A | B |
|---|
| Average speed | distance traveled divided by the time it takes to travel the distance |
| instantaneous speed | the speed of an object an any moment of time |
| odometer | measures distancr traveled |
| speedometer | measures instananeous speed |
| constant speed | when instaneous speed does not change |
| velocity | speed of an object and direction of its motion |
| acceleration | change in velocity divided by the time needed for the change to occur |
| initial speed | speed at the beginning of a time period |
