Across
- 4. Downward movement with gravity
- 6. Equal and Opposite Reaction
- 8. pre-hit momentum = post-hit momentum
- 9. Friction between base surface and a sliding object
- 10. Rubbing
- 11. Fastest you can go
- 14. F=MA
- 16. Has to touch
- 17. Force between moving forces
- 18. Tendency of an object to not change
- 19. Relative Mass
- 20. Object in motion stays in motion
Down
- 1. Push or pull
- 2. Mass and velocity
- 3. Gravity, Strong Nuclear, Weak Nuclear
- 5. Particle attracts every other particle
- 7. All forces
- 12. Friction when an object rolls
- 13. Don't have to touch
- 15. Force that keeps an object still