Simple Machines

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Across
  1. 4. A ratio of the output force to the input force
  2. 6. The force you find though a distance
  3. 7. Wout over Win x 100 with a percent sign as a lable
  4. 8. A machine used to lift things with a rope
Down
  1. 1. the tires on your car
  2. 2. A machine that acts with only one movement
  3. 3. A seesaw or board of wood with a fulcrum
  4. 5. A ramp like marchine