Jean Bernard puzzle

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Across
  1. 2. - whenever work is done, energy changes is known as the work-energy______
  2. 3. a lever that can be relatively close to the load
  3. 9. per second
  4. 10. energy-the energy that is in motion
  5. 12. machine that's like a stai
  6. 13. that underlies every machine
  7. 15. the ratio of useful work output to total work input
  8. 16. energy-stored energy
Down
  1. 1. the unit of energy and work
  2. 4. the lever can be relatively close to the to the load
  3. 5. law of _________of energy states________
  4. 6. device use to change direction
  5. 7. - going against another force
  6. 8. advantage-the ratio output force to the input force in a machine is the mechanical_____
  7. 11. rate at which work is done
  8. 14. the ability to work