Chapter 8 Vocab

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Across
  1. 5. W=Fxd
  2. 7. a double inclined plane that moves
  3. 8. the rate at which work is done.
  4. 9. a force causes an object to move in a direction of the force.
  5. 10. is a simple machine consisting of a bar that pivots
  6. 13. a simple machine consisting of a grooved wheel that holds a rope or cable.
  7. 14. the work done by a machine.
  8. 15. the work you do to a machine.
  9. 16. plane a simple machine that is straight
  10. 17. MA=output force/input force.
  11. 20. a comparison of a machines work output with the work input.
  12. 21. a simple machine consisting two circular object of different sizes.
Down
  1. 1. ME=work output/work input x 100
  2. 2. an inclined plane that is wrapped in a spiral.
  3. 3. used to express work is the Newton-meter.
  4. 4. P=W/t
  5. 6. tells you how many times the machine multiplies force.
  6. 11. the unit used to express power is J/s.
  7. 12. machines that are made of two or more simple machines.
  8. 18. a simple machine
  9. 19. a device that helps make work easier by changing the size or direction of a force.