Across
- 4. energy can not be made or destroyed
- 8. ratio of output & input
- 9. group of objects
- 10. Work on an object is equal to its change in kinetic energy
- 12. product of applied force
Down
- 1. stored energy based on position
- 2. two or more simple machines
- 3. energy per unit
- 5. a unit of power
- 6. energy due to motion
- 7. pulley or axle
- 11. ability to do work