Work and Machines

123456789101112131415161718192021222324252627282930
Across
  1. 2. an inclined plane wrapping around a cylinder
  2. 5. the energy output, divided by the energy input, and expressed as a percentage
  3. 8. the reactionary force
  4. 9. any object that once projected continues in motion by its own inertia
  5. 13. a machine that uses more than one simple machine
  6. 15. the resistance of an object to change
  7. 16. device that changes the direction or magnitude of a force
  8. 17. a mechanical device that changes the direction or magnitude of a force
  9. 18. goes with a wheel
  10. 21. wheels with teeth
  11. 24. a ramp
  12. 25. the pivot point on a lever
  13. 26. overall force acting on an object
  14. 27. two inclined planes facing each other to split in between things
  15. 29. the initial force
  16. 30. has three classes
Down
  1. 1. the force acting against an object that is sliding
  2. 3. force that is applied to an object moves that object
  3. 4. the standard unit of work or energy
  4. 6. balance
  5. 7. a slowing down or stopping of a force
  6. 10. mass times velocity
  7. 11. the force on a moving object
  8. 12. ratio of the output force to the input force
  9. 14. goes with an axle
  10. 19. the force exerted on a surface or body
  11. 20. the force on a resting object
  12. 21. the natural force pulling something to the Earth
  13. 22. the frictional force air
  14. 23. uses a rope and a wheel to pull objects
  15. 28. F= M x A