Chapter 8 Vocabulary

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Across
  1. 2. a system of levers used to transmit motion
  2. 5. a simple machine that consists of a bar and fulcrum
  3. 7. a force that acts like a break on moving objects
  4. 9. a simple machine that is an inclined plane wrapped around a cylinder
  5. 11. a simple machine in the form of a sloping surface or ramp, used to move a load from one level to another
  6. 13. the speed of an object; also the rate of change in an object's motion
  7. 14. a measurement in the amount of effort needed to change one kind of energy into another
  8. 15. a device that does some kind of work by changing or transmitting energy
  9. 16. a simple machine that is a special kind of lever
  10. 17. a way of changing one kind of effort into another kind of effort
  11. 18. the rate at which work is done or the rate at which energy is converted from one place to another
Down
  1. 1. the thickness of a liquid, caused by friction of molecules
  2. 3. a simple machine that consists of two inclined planes placed back to back
  3. 4. the effort applied to a given area
  4. 6. in a simple machine, the advantage to move a large resistance by applying small effort
  5. 8. a measure of turning effort
  6. 10. a simple machine in the form of a wheel with a groove around its rim to accept a rope, chain, or belt
  7. 12. a rotating wheel like object around its rim used to transmit force to other gears with matching teeth