Machine Puzzle

Edit Answers
12345678910111213
Across
  1. 2. the ratio of work output to work input in a
  2. 3. a simple machine consisting of two circular objects of different sizes; the
  3. 4. a simple machine that is
  4. 5. a simple machine that consists of a bar that
  5. 6. at a fixed point called a fulcrum.
  6. 7. A device that helps do work by changing the magnitude and/or direction of an applied force.
  7. 8. is the larger of the two circular objects, and the
  8. 9. force.
  9. 11. a simple machine that consists of a wheel
  10. 12. is attached to the center of the wheel.
  11. 13. which a rope, chain, or wire passes.
Down
  1. 1. a quantity, usually expressed as a percentage, that
  2. 7. a number that tells how many times a machine multiplies
  3. 10. the point on which a lever pivots.
  4. 13. loads; a ramp.