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Across
  1. 2. the use of force to move an object
  2. 3. the rate at which work is done
  3. 5. any device that helps people
  4. 7. energy the energy of motion
  5. 8. is a simple machine that has a grooved wheel that holds a rope or a cable
  6. 9. plane is a simple machine that is straight
  7. 10. efficiency is a comparison of a machine's work output with the work input
  8. 11. is a simple machine that has a bar that pivots at a fixed point
  9. 12. this fixed point is called a
Down
  1. 1. energy the energy at which an object has because of its position
  2. 4. and axle is a simple machine that is made of a wheel connected to a smaller cylindrical object.the axel
  3. 5. energy the energy possessed by an object due to its motion and position
  4. 6. the ability to do work
  5. 10. advantage is the number of times the machine multiplies the input force