POE Lesson 1.1 Key Terms

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Across
  1. 3. Any of various elementary mechanisms including the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw
  2. 6. An inclined plane wrapped around a cylinder, forming the path and pitch
  3. 8. 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
  4. 9. A gear positioned between the driver and the driven gear used to change rotational direction
  5. 13. The ratio of the magnitude of the resistance and effort forces applied to a system
  6. 15. The fixed point around which a lever rotates
  7. 16. 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
  8. 18. Creating, designing, and transmitting technical information so that people can understand it easily and use it safely, effectively, and efficiently
  9. 19. A force that produces or tends to produce rotation or torsion
  10. 22. The ratio of useful energy output to the total energy input, or the percentage of the work input that is converted to work output
  11. 23. The resistance that one surface or object encounters when moving over another
  12. 24. The structure of or the relationship of the parts in a machine, or in a construction or process comparable to a machine
  13. 26. A profession for which one trains and which is undertaken as a permanent calling
  14. 27. The recognized accreditor for college and university programs in applied science, computing, engineering, and technology
Down
  1. 1. A substance that tapers to a thin edge and is used for splitting, raising heavy bodies, or for tightening by being driven into something
  2. 2. 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
  3. 4. Ratio of distance traveled by the applied effort and resistance force within a system
  4. 5. Distance between adjacent threads in a screw
  5. 7. Two different sized circular objects that are attached together and turn as one
  6. 10. A continuous band of tough flexible material used to transmit motion and power within a pulley system
  7. 11. 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. 12. 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
  9. 14. An external force applied to an object
  10. 17. Impeding effect exerted by one material object on another
  11. 20. 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
  12. 21. A circular toothed object used to transfer rotary motion and torque through interlocking teeth
  13. 25. A toothed wheel whose teeth engage the links of a chain