Simple Machine

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Across
  1. 1. A class of lever with mechanical advantage equal to one, less than one or more than one
  2. 4. fixed point around which a lever can turn about
  3. 8. Efficiency of an ideal machine
  4. 9. Useful work done by the machine on load
  5. 12. factor by which a machine multiplies the effort
  6. 14. An example of wedge
  7. 15. A class of lever with effort arm longer than load arm
Down
  1. 2. force applied on a machine to do work
  2. 3. A machine that changes the direction of effort in a favourable direction to raise up load
  3. 5. An example of inclined plane
  4. 6. An example of wheel and axle
  5. 7. Useful work done on the machine by the effort
  6. 10. capacity to do work
  7. 11. A class of lever with effort in between the fulcrum and load
  8. 13. force applied by the machine to do work