Simple Machines

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Across
  1. 6. Spiral inclined plane
  2. 7. Basic types of machines that are classified in specific categories and are the basic for all other forms of machines
  3. 9. Lever, pulley, and wheel & axle are part of what family?
  4. 10. A doorknob is an example of a
Down
  1. 1. Inclined plane, wedge, and screw are part of what family?
  2. 2. The fixed point that a lever pivots on
  3. 3. A simple machine that has two inclined planes that are placed back-to-back
  4. 4. Flat, slanted surface that at a angle
  5. 5. Simple machine that uses a rigid bar and a fulcrum
  6. 8. Window blinds is an example of a