PLTW Lesson 2: Mechanical Systems Vocab CCS

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Across
  1. 2. A system that uses the rotary motion of a threaded shaft to cause another part to move [back-and-forth] linearly to transmit motion and force.
  2. 4. The ratio of the speed of the driving member of a gear train to that of the driven member.
  3. 5. A push or pull on an object.
  4. 7. The application of force that moves an object a certain distance.
  5. 9. Movement in a straight line.
  6. 15. An assembly of moving parts that transforms input motion and forces into output motion and forces.
  7. 17. A twisting force.
  8. 18. A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts.
  9. 19. A system that uses a combination of two or more rotating gears to transmit motion and force.
  10. 21. A system that transmits motion and force using a short revolving cylinder with a screw thread to drive a gear.
  11. 23. A swing back and forth at a regular rate.
  12. 24. The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
  13. 26. The results of the operation of a system.
  14. 27. The member of a pair of gears to which motion and power are transmitted by the other. The output gear.
  15. 28. The distance between adjacent threads in a screw.
  16. 29. The ability to do work.
  17. 30. A connected flexible series of metal links used for fastening or securing objects and pulling or supporting loads.
Down
  1. 1. A gear between the driving and the driven gear used to change rotational direction.
  2. 3. A rotating part that causes a second part to move back and forth linearly, in a straight line.
  3. 6. A system that transmits motion and force using a flexible mechanism that connects two rotating shafts at an angle to each other.
  4. 8. Opposite in position, direction, order or effect.
  5. 10. Something put into a system, such as resources, information, or signals, in order to achieve a result.
  6. 11. A back and forth movement.
  7. 12. A system that transmits motion and force using a rotating gear to cause linear motion of a toothed bar.
  8. 13. A system that transmits motion and force between two cone-shaped gears often mounted at a 90-degree angle to each other.
  9. 14. The gear which transmits power and motion to the rest of the system. The input gear.
  10. 16. A system that transmits motion and force using a rotating part that causes a back-and-forth linear motion of a second part through a connecting bar.
  11. 20. The transmission of power between shafts by means of a belt connecting pulleys on the shafts.
  12. 22. Circular movement.
  13. 25. Tooth-like projections on a wheel rim to engage the links of a chain.