Work and Machines Crossword Puzzle

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Across
  1. 2. unit for force
  2. 3. weight or source of pressure
  3. 5. push or pull
  4. 8. 1.activity involving mental or physical effort done in order to achieve a purpose or result
  5. 13. balance
  6. 14. anything thrown
  7. 15. resistance of any physical object to any change in its state of motion
  8. 16. ex crane
  9. 17. wheels with teeth
  10. 18. measure of the force amplification achieved by using a tool/machine
  11. 20. force resisting the relative motion of surfaces
  12. 22. ex ramp
  13. 26. sum of all forces
  14. 27. unit for energy
  15. 28. rod or spindle passing through center of a wheel
Down
  1. 1. mass x velocity
  2. 4. force the machine exerts
  3. 6. force which act in the opposite direction that you are travelling in the air
  4. 7. ability to avoid wasting
  5. 8. ex tire
  6. 9. ex seesaw
  7. 10. ex lever, wedge, screw, pulley, inclined plane, wheel/axle, gears
  8. 11. machine with two or more simple machines
  9. 12. the ability not to be affected by something
  10. 19. all things with mass are brought toward one another
  11. 21. ex bolts, nuts, screws
  12. 23. force you put into machine
  13. 24. pivot point of a lever
  14. 25. ex knife