1. Speed that does not change.
2. Speed in a given direction,
3. A background used to judge motion or speed.
4. Speed at a given moment in time.
5. The amount of distance traveled in a certain amount of time.
6. The total distance divided by total time.
7. The graph that shows speed of an object.
8. The change in velocity over time.
9. An object changing position or distance in time.
10. The amount of time it takes to change position or motion.​