Simple Machines

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Across
  1. 2. What does ideal mechanical advantage stand for?
  2. 4. What class lever is like a seesaw?
  3. 7. Is a slanted surface or ramp.
  4. 9. How many types of pulleys are there?
  5. 10. What does actual mechanical advantage stand for?
Down
  1. 1. Is a device that makes work easier with only one movement.
  2. 3. Is a rope wrapped around a wheel.
  3. 5. How many simple machines are there?
  4. 6. What is the variable for force?
  5. 8. What simple machine has a fulcrum?