Simple Machines Crossword Puzzle

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Across
  1. 1. IMA stands for...
  2. 3. How many classes of levers are there?
  3. 5. Equation to calculate the amount of work someone does.
  4. 7. The unit used for work.
  5. 9. A device that makes work easier
  6. 10. What class of lever is it when the Fr is in between the fulcrum and the Fe?
Down
  1. 2. AMA stands for...
  2. 4. The second way a simple machine can make work is by changing the _________.
  3. 6. How many types of pulleys are there?
  4. 8. The first way a simple machine can make work easier.