Chapter 8 Vocab

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Across
  1. 1. a simple machine consisting of a grooved wheel that holds a rope or a cable.
  2. 7. a simple machine consisting of two circular objects of different sizes.
  3. 8. a double inclined plane that moves.
  4. 9. the rate at which work is done.
  5. 10. the work done by machines
  6. 11. a device that helps make work easier by changing the size or direction of a force.
  7. 12. comparison of a machine’s work output and with the work input.
  8. 13. the unit used to express joules per second.
Down
  1. 2. a simple machine consisting of a that pivots at a fixed point, called fulcrum.
  2. 3. a simple machine that is a straight, slanted surface
  3. 4. the unit used to express Newton-meter.
  4. 5. machines that are made of two or more simple machines
  5. 6. an inclined plane that is wrapped in a spiral.
  6. 8. the work you do on a machine.
  7. 13. occurs when a force causes an object to move in the direction of the force.