Across
- 4. doesn't change in the universe
- 6. to remain unchanged
- 11. force that keeps an object at rest
- 12. mass x acceleration
- 15. force from air
- 16. motion of an object that is thrown
Down
- 1. An object at rest stays at rest
- 2. two forces one that is greater than the other being pulled in opposite direction
- 3. resistance created by objects that are sliding against eachother
- 5. f=m x a
- 7. two of the same forces pulled in an opposite direction
- 8. the unit for force
- 9. m/s/s
- 10. weight
- 13. what holds the earth down
- 14. kilograms