Across
- 3. is the distance covered per amount of travel time.
- 5. speed is the speed at any instant of time.
- 7. is how effectively a device transforms or transfers useful energy.
- 9. is a measure of how quickly work is done or the rate at which energy is changed from one form into another.
- 10. we use what to show direction with motion?
Down
- 1. what is a push or pull?
- 2. quantity describing both speed and direction.
- 4. who runs 9.58 seconds.
- 6. is the rate at which velocity changes with time.
- 8. what is the product of force and contact time?