Work and Machines Vocabulary

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Across
  1. 1. A type of lever that is a wheel with a groove in its rim, which is used to change the direction or multiply a force exerted by a rope or cable
  2. 4. the work done by a machine
  3. 6. unit for work
  4. 8. A flat surface set at an angle or an incline with no moving parts that is able to lift objects by pushing or pulling the load
  5. 10. A device that makes work easier
  6. 11. the number of times that the machine increases an input force
  7. 13. A measure of power equal to one joule of work per second
  8. 14. a simple machine that is an inclined plane that moves
  9. 15. is a comparison of a machine's work output with the work input
Down
  1. 2. a simple machine that consists of a bar that pivots at a fixed point called a fulcrum
  2. 3. a combination of two or more simple machines that operate together
  3. 4. A result of a force moving an object a certain distance
  4. 5. the rate at which work is done
  5. 7. the work done on a machine
  6. 9. a simple machine that consists of an inclined plane wrapped around a cylinder
  7. 12. a simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects