Across
- 3. ratio of distance and time that the object moves
- 6. heat
- 9. a force opposing the movement of an object
- 14. unit for mass
- 15. electricity energy
- 16. a reaction between two substances
- 17. the ability to do work
- 19. stored energy
- 20. product of force and distance
Down
- 1. fall objects movement towards earth only by gravity
- 2. a push or pull
- 4. the length of the path between two points
- 5. measurement of the inertia of an object
- 7. potential energy from a height
- 8. rate of doing work
- 10. movement energy
- 11. atoms energy stored in nucleus
- 12. unit for work
- 13. product of mass and velocity
- 18. unit for force