science

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Across
  1. 4. a rod passing through a wheel
  2. 5. the amount of effort put into a machine
  3. 6. an inclined plane
  4. 9. determine how long something is
  5. 10. rod-shaped piece with a spiral groove
  6. 12. a bar on a fulcrum used to lift things
  7. 14. how tall something is
  8. 15. the unit objects is weighed in
Down
  1. 1. the amount of effort a machine put out
  2. 2. makes things easier to move or lift
  3. 3. the unit length is measured in
  4. 7. a wheel with a rope used to lift things
  5. 8. object w/ one thick end and a thin edge
  6. 11. when two objects rub against each other
  7. 13. circular object with axle ran through it