Rube Goldberg and Simple Machines

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Across
  1. 2. cap, machine, or lag
  2. 7. device with few or no moving parts (2 words)
  3. 9. rube goldberg in the dictionary
  4. 10. sloping surface (2 words)
Down
  1. 1. rube's jo at the Evening Mail
  2. 3. pulleys with grooved rims
  3. 4. rube's real name
  4. 5. rests on a fulcrum
  5. 6. large and small often used with a wheel and axle
  6. 8. tapers to a thin edge