Simple and Compound Machines

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Across
  1. 4. This is created when two things rub against eachother, simple machines help with it
  2. 5. One of the three types of pulleys that is unable to be moved
  3. 6. Large example of a compound machine
  4. 8. The Rate at which work is done, you need this in order to work most machines
  5. 9. Fancy word for where load and effort in a simple machine meet
  6. 13. Medieval example of a compound machine that makes great use of levers
  7. 15. Simple Machine used to lift objects off the ground
  8. 16. Common item for construction and great for amplifying force
  9. 17. Name for the thing on the gear that mesh with other gears
  10. 18. There are two types of this, kinetic and potential
  11. 19. The most basic type of gear
Down
  1. 1. A compound machine found in every single building!
  2. 2. A triangular shaped object that is also a portable inclined plane
  3. 3. Even larger example of a compound machine, famous in Holland
  4. 7. Attach a wheel to this and you have a simple machine with a powerful mechanical advantage
  5. 8. A flat level surface
  6. 10. This is a simplified name for an inclined plane
  7. 11. An example of a compound machine great for personal transportation
  8. 12. An example of a compound machine and a handy tool for art class
  9. 14. These are used in the making of catapults