Simple Machines

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Across
  1. 2. Egyptians used _____ to build the pyramids.
  2. 7. Simple Machines provide us with a __________ Advantage.
  3. 9. This force works against falling objects.
  4. 10. The number of classes of levers
  5. 11. Simple machine used to cut through things.
Down
  1. 1. Used by the ancient Greeks to draw water to the surface.
  2. 3. A rotating wheel with a grooves circumference
  3. 4. Toothed wheels that transmit a rotational force.
  4. 5. The pivot point on a lever.
  5. 6. Machine Machines that have a single or no moving parts.
  6. 8. Units used to measure force.
  7. 10. A claw hammer is an example of a _______ class lever.