Simple and Complex Machines

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Across
  1. 6. The point around which a lever pivots or turns.
  2. 9. Any devices made up of more than one simple machine; compound machines.
  3. 10. A pin or pole around which a wheel revolves.
  4. 12. A round object that turns around a pin or pole; a type of simple machine.
  5. 13. Any device that uses energy to help a person do work.
  6. 14. An inclined plane wrapped around a rod, often used to hold things together; a type of simple machine.
  7. 15. Something that is lifted or carried.
  8. 16. A round object that turns around a central point.
Down
  1. 1. Any basic devices that work with the use of a single force.
  2. 2. The force that builds up when two objects rub against each other.
  3. 3. A slanted surface that makes it easier to move an object between a lower level and a higher level; a type of simple machine.
  4. 4. The strength or energy that moves an object.
  5. 5. A circular lever, usually a wheel with a rope around it; a type of simple machine.
  6. 7. A sloped path used to move things between a lower level and a higher level.
  7. 8. A toothed wheel that connects with another toothed object to change speed or direction; a type of simple machine.
  8. 11. A rigid bar that pivots or turns around a fulcrum; a type of simple machine.
  9. 12. A simple machine with one narrow or pointed end and one wide end, used to separate two objects or parts.
  10. 16. The act of moving something.