Across
- 3. Whenever work is done, energy changes is known as the work- energy ________
- 6. The unit of energy and work
- 8. - Giving the ability to do work
- 10. The ratio output force to the input force in a machine is the mechanical ________
- 11. Concept that underlies every machine
- 14. - The energy that is in motion
- 16. - the law of _______ of energy States that energy can’t be created or destroy
- 18. - The energy that is stored in an object
Down
- 1. A machine that’s like a stair
- 2. Going against another force
- 4. device use to change direction
- 5. The rate at which work is done
- 7. used to change the direction of the force
- 9. Joules per second
- 12. the ratio of useful work output to total work input
- 13. The lever can be relatively close
- 15. the load.
- 17. A lever that can