Across
- 5. Gravitational force on mass.
- 8. How far something has travelled.
- 9. How fast something is moving.
- 11. Resistance to change in motion.
- 12. Useful energy out vs input.
- 14. Steepness of a sloping surface.
- 15. Balanced forces; no overall change.
- 16. Single force from combined forces.
- 17. Speed in a given direction.
- 18. Stored energy due to position.
Down
- 1. Change in speed per second.
- 2. Push or pull on object
- 3. Energy of a moving object.
- 4. Straight-line distance with direction.
- 6. Force pulling objects toward Earth.
- 7. Amount of matter in object.
- 10. Capacity to do physical work.
- 13. Energy cannot be created or destroyed.