simple machines

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Across
  1. 2. is the transfer of energy through motion
  2. 3. is an inclined plane with 2 sloping sides instead of one.
  3. 4. is a device that makes work easier with only one movement.
  4. 8. is a slanted surface or ramp.
  5. 10. is a bar that is free to turn on a fixed point called a fulcrum.
Down
  1. 1. is a machine that combines two or more simple machines.
  2. 5. is a measure of how much of the work put into a machine is changed to useful work put out by a machine.
  3. 6. is a machine consisting of two wheels of different sizes that rotate together.
  4. 7. is an inclined plane that turns around a central point.
  5. 9. is a rope wrapped around a wheel.