Machines

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Across
  1. 3. a ____ class lever has an effort between a pivot and a resistance
  2. 5. a ________ pulley has an axel mounted in bearings attached to a supporting structure
  3. 6. unit for mass
  4. 8. wheel that carries a flexible rope on its rim
  5. 13. measure of how much easier work is when using a particular machine
  6. 14. unit for distance
  7. 17. flat surface tilted at an angle
  8. 18. an inclined plane in which the plane is moved instead of the object or resistance
Down
  1. 1. twisting force that causes rotation
  2. 2. a simple machine consisting of a wheel turned by a cord or chain with a firmly attached axle
  3. 4. unit for force
  4. 7. a ____ class lever has a resistance between a pivot point and an effort
  5. 9. ratio of useful work in put to work out put by a machine
  6. 10. a ______ pulley has an axle in a moveable block
  7. 11. unit for power
  8. 12. unit for time
  9. 15. a _____ class lever has a pivot point in between an effort and resistance force
  10. 16. rigid bar resting on a pivot