Across
- 1. Distance per time
- 5. Push or pull
- 6. Competitive physical activities
- 7. Gases around the Earth
- 9. Person skilled in sports
- 11. Spinning around an axis
- 12. Change in position
- 13. Amount of matter in an object
- 17. Ability to do work
- 18. Changes in velocity over time
- 20. Methods of doing something
Down
- 2. Test to discover or prove something
- 3. Speed with direction
- 4. In constant ratio
- 8. Unit of force
- 10. Pushing off the ground into the air
- 14. Mass times velocity
- 15. Force that pulls objects downward
- 16. Force that slows motion
- 19. Study of the natural world