Across
- 3. state
- 8. velocity
- 11. magnitude
- 12. principle
- 14. direction
- 16. motion
- 17. Force
- 18. to force
Down
- 1. classic
- 2. mechanics
- 4. rest
- 5. postulate or axiom
- 6. foundation
- 7. Property
- 9. to act or to affect
- 10. body
- 12. physics
- 13. inertia
- 15. law
- 16. to stay