Unit D: Mechanical Systems By Paige A. 8S

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Across
  1. 2. pair of wheels with teeth that interlink; when they rotate together
  2. 7. force applied to operate a machine
  3. 9. a group of parts that all work to perform a general function, forming a complex machine
  4. 11. force a machine applies to an object
  5. 14. simple machine made up of a wire, rope, or cable moving on a grooved wheel; may be made up of one or many wheels; can be fixed in place or movable
  6. 17. measurement of how well a machine or device uses energy
  7. 20. the ability to make things move and change
  8. 22. simple machine made up of a flat surface, such as a board, at an angle to another flat surface, such as the ground or a table top; ramp
  9. 23. amount by which a machine can multiply a force
  10. 24. purpose or task
  11. 25. the gear that supplies the energy
  12. 26. international system of units that measures force
  13. 28. measure of how the speed of an object is affected by a machine
  14. 29. done when a force acts on an object to make the object move
Down
  1. 1. device that helps us do work
  2. 3. simple machine that consists of a cylinder with a groove cut in a spiral on the outside
  3. 4. smaller group of parts within a complex machine that performs a specific function
  4. 5. tool or device made up of one basic machine
  5. 6. system in which simple machines all work together
  6. 8. measure of the amount of force applied to a given area
  7. 10. the gear which the force is directed
  8. 12. special type of linkage for transferring the energy from the engine to the wheels in large vehicles such as cars and trucks
  9. 13. simple machine made up of two wheels of different diameters that turn together; a longer motion on the wheel produces a shorter but more powerful motion at the axle
  10. 15. simple machine made up of a rigid bar or plank that rotates on a fixed object called a pivot or fulcrum
  11. 16. simple machine that looks like an inclined plane, but is forced into an object
  12. 18. system that uses a liquid under pressure to move loads; device that uses liquids in a confined space to transfer forces; works according to Pascal’s law
  13. 19. belt or chain to transfer energy from an energy source to an object
  14. 21. force that opposes motion
  15. 27. smaller gear