Simple Machines, Work, and Mechanical Advantage

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Across
  1. 3. A simple machine that lifts or holds materials together. Often a cylindrical rod with a spiral thread.
  2. 8. The unit for work.
  3. 9. A simple machine that raises an object to greater height. Usually a straight slanted surface and no moving parts.
  4. 10. A machine with few or no moving parts that is used to make work easier.
  5. 12. The unit for force.
  6. 15. A push or pull on an object.
Down
  1. 1. The force that acts in the opposite direction of motion between two surfaces that are in contact.
  2. 2. A ratio between an input force and an output force to show the performance of a simple machine.
  3. 4. A device that combines 2 or more simple machines.
  4. 5. A simple machine that changes the direction of a force, often to lift a load. Usually consists of a grooved wheel in which a pulled rope or chain runs.
  5. 6. A simple machine that increases or decreases the force to lift something. Usually a bar pivoted on a fixed point to which force is applied to do work.
  6. 7. A simple machine that forces materials apart.
  7. 11. Force on an object multiplied by the distance it moves.
  8. 13. A simple machine that reduces the friction of moving by rolling.
  9. 14. The pivot about which a lever turns.