Simple Machines

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Across
  1. 3. levers are used to apply a force to move an object
  2. 6. a comparison of a machine's work output with the work input
  3. 9. a device that helps people do work by changing the way work is done
  4. 10. inclined plane that is wrapped in a spiral around a cylinder
Down
  1. 1. a simple machine that is a straight, slanted surface
  2. 2. a simple machine that has a grooved wheel that holds a rope or a cable
  3. 4. the number of times the machine multiplies the input force
  4. 5. a pair of inclined planes that move
  5. 7. a simple machine that has a bar that pivots at a fixed point
  6. 8. and axle , a simple machine that is made of a wheel connected to a smaller cylindrical object, the axle