| A | B |
|---|
| frame of reference | something that is moving/comparing it with something that is not moving |
| speed | distance divided by time |
| constant speed | speed that does not change |
| average speed | speed that changes |
| velocity | speed in a given direction |
| combined velocities | combine the speed of 2 things |
| rate at which an object moves | speed |
| most common frame of reference | Earth |
| pizza | is good |
