Work and Machines Crossword Puzzle

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Across
  1. 4. The resistance or load on an object
  2. 6. The point where it pivots
  3. 10. The force applied to an object
  4. 11. Make work easier by increasing distance
  5. 12. Increase the distance and decrease amount of force used
  6. 13. Simple machine used to split objects
  7. 14. Frictional force that air exerts
  8. 15. Unit forces are measured in
  9. 16. Simple machine that has teeth
  10. 17. The universal force that attracts masses to each other
  11. 19. The measure of the gain found from using a simple machine
  12. 21. Point reached where the Net Force is 0
  13. 22. Rotates through the center of the wheel
  14. 23. Force x Distance
  15. 24. Measurement of energy
  16. 26. This means there is no motion and the Net Force is 0
  17. 28. Ratio of usefulness of the machine to the total energy used
  18. 29. Mass x Acceleration
  19. 30. There are 3 classes of ______
Down
  1. 1. A type of ramp
  2. 2. Simple Machine that changes the direction of the force
  3. 3. Mass x Velocity
  4. 5. 2 or more simple machines working together
  5. 7. If there are _________ , there is acceleration
  6. 8. _____ & Axle, used to reduce friction
  7. 9. The output force applied against an object
  8. 18. A wedge and inclined plane combined into one
  9. 20. the force that causes an object to resist motion
  10. 25. Also known as 'effort'
  11. 27. Newton’s First Law, also known as The Law of ______