simple machians

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Across
  1. 2. wheel that carries a flexible rope.
  2. 4. a simple .
  3. 6. a rigid bar resting on a povit.
  4. 7. circle often with axle; in car.
  5. 8. what is measured in watts.
Down
  1. 1. rube project.
  2. 3. rod with a spiral around it.
  3. 5. something that wheels revolve on.
  4. 7. one thick end that tapers in the thin edge
  5. 9. what is measured in joules.