Unit 1.1 Mechanisms Vocabulary

12345678910111213141516171819202122232425
Across
  1. 4. The turning effect of a force about a point equal to the magnitude of the force times the perpendicular distance from the point to the line of action from the force.
  2. 10. A profession for which one trains and which is undertaken as a permanent calling.
  3. 13. The ratio of the magnitude of the resistance and effort forces applied to a system.
  4. 14. A rigid bar used to exert a pressure or sustain a weight at one point of its length by the application of a force at a second and turning at a third on a fulcrum.
  5. 15. A type of lever that is a wheel with a groove in its rim, which is used to change the direction or multiply a force exerted by a rope or cable.
  6. 16. A force that produces or tends to produce rotation or torsion.
  7. 17. A condition where there are no net external forces acting upon a particle or rigid body and the body remains at rest or continues at a constant velocity.
  8. 20. Two different sized circular objects that are attached together and turn as one.
  9. 21. A toothed wheel whose teeth engage the links of a chain.
  10. 24. An inclined plane wrapped around a cylinder, forming the path and pitch.
  11. 25. An external force applied to an object.
Down
  1. 1. A flat surface set at an angle or an incline with no moving parts that is able to lift objects by pushing or pulling the load.
  2. 2. Any of various elementary mechanisms including the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.
  3. 3. Impeding effect exerted by one material object on another.
  4. 5. A circular toothed object used to transfer rotary motion and torque through interlocking teeth.
  5. 6. The ratio of useful energy output to the total energy input, or the percentage of the work input that is converted to work output.
  6. 7. Ratio of distance traveled by the applied effort and resistance force within a system.
  7. 8. A substance that tapers to a thin edge and is used for splitting, raising heavy bodies, or for tightening by being driven into something.
  8. 9. A series of usually metal links or rings connected to or fitted into one another and used to transmit motion and power within a sprocket system.
  9. 11. The recognized accreditor for college and university programs in applied science, computing, engineering, and technology.
  10. 12. Distance between adjacent threads in a screw.
  11. 18. A gear positioned between the driver and the driven gear used to change rotational direction.
  12. 19. A continuous band of tough flexible material used to transmit motion and power within a pulley system.
  13. 22. The fixed point around which a lever rotates.
  14. 23. The resistance that one surface or object encounters when moving over another.