Power, Work, and Machines

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Across
  1. 2. The force that is applied to the machine.
  2. 6. Simple machine that consists of an inclined plane wrapped around in a spiral around a cylindrical post.
  3. 7. The force applied by the machine.
  4. 9. Ratio of the output force exerted by a machine to the input force applied to the machine.
  5. 11. Simple machine that is inclined plane with one or two sloping sides.
  6. 14. Ratio of the output work done by the machine to the input work done on the machine, expressed as a percentage.
Down
  1. 1. Simple machine that consists of a sloping surface, such as a ramp that reduces the amount of force needed to lift something by increasing the distance over which the force is applied.
  2. 3. A machine that is a combination of two or more simple machines.
  3. 4. Transfer of energy that occurs when a force an object move; measured in joules.
  4. 5. Simple machine that consists of a shaft or axle attached to the center of a large wheel , so that the shaft and the wheel rotate together.
  5. 6. machine that does work with only one movement-lever, pulley, wheel and axle, inclined plane ,screw, and wedge.
  6. 8. Amount of work done, or the amount of energy transferred divided by the time required to do the work or transfer the energy; measured in watts(W).
  7. 10. Simple machine that consists of a grooved wheel with a rope, chain, or cable running along the groove; can be either fixed or movable.
  8. 12. Device that makes doing work easier by increasing the distance over which a force can be applied.
  9. 13. Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum.