Across
- 5. two forces acting with equal magnitude
- 7. rate at which something happens
- 8. a force that acts between two surfaces that meet
- 9. the force that attracts a body
- 11. quantity of motion
- 14. rate of change
- 15. an influence tending to change motion of an object
Down
- 1. amount having only magnitude
- 2. propelled with great force
- 3. the amount of something that has been displaced
- 4. amount having direction and magnitude
- 6. a force acting briefly on a body
- 10. power required to overcome friction
- 12. quantity of matter
- 13. sum of all acting forces