Mechanical Systems

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Across
  1. 4. A cylinder with grooves cut on the outside
  2. 5. Calculation of how well a machine uses energy
  3. 8. Simple machine made of a rigid plank that pivots
  4. 9. The force that resisting motion
  5. 12. Device that helps us do work.
Down
  1. 1. One basic machine
  2. 2. Unit of measure for force
  3. 3. Can be fixed or moveable
  4. 6. Used to evaluate machines or devices
  5. 7. Simple machine that is forced into an object
  6. 10. A machine with many parts
  7. 11. Is a plank like a ramp
  8. 13. Force applied to the machine