Energy,Work, simple machine-alexsa

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Across
  1. 2. A simple machine that is an inclined plane that moves
  2. 5. A flat, sloped surface
  3. 9. two or more simple machines working together
  4. 10. A shaft attached to a wheel of a larger diameter so that they both rotate together
  5. 12. To change a thing into a different thing
  6. 13. A simple machine that consists of a grooved wheel with rope or cable wrapped around it
Down
  1. 1. A simple machine that pivots around a fixed point
  2. 3. The ratio (Percentage) of output work to input work
  3. 4. Conversion of one form of energy to another
  4. 6. Machines that do work using one movement
  5. 7. A flat, level surface
  6. 8. A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral
  7. 11. The amount of energy used as a force moves an object over distance