Work, energy, and machines

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Across
  1. 7. advantage: The number of times the machine multiplies the input force
  2. 11. efficiency: A comparison of a machine's work output with the work input
  3. 12. energy: The energy possessed by an object due to its motion and position
  4. 13. The ability to do work
  5. 14. The use of force to move an object
Down
  1. 1. and axle: A simple machine made of a wheel connected to an axle
  2. 2. energy: The energy an object has because of its position, condition, or chemical composition
  3. 3. The rate at which work is done
  4. 4. A fixed point
  5. 5. plane: A simple machine that is a straight slanted surface
  6. 6. A device that helps people do work by changing the way the work is done.
  7. 8. A simple machine that has a bar that pivots on a fixed point
  8. 9. A simple machine with a grooved wheel that hold a rope or cable
  9. 10. energy: The energy of motion