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5 Written questions

5 Matching questions

  1. What is the general principle of the inverse square law?
  2. What can RMS be applied to?
  3. How is loudness judged?
  4. What is the great value in using a decibel scale?
  5. What does a transducer do?
  1. a to specify exactly how the intensity of sound diminishes as the hearer/recorder gets further away form the speaker/sound source
  2. b periodic sounds
    number of harmonic components
    aperiodic sounds
  3. c by the human listener
    cannot be measured by equipment
  4. d converts electrical energy into acoustic energy
    *a home stereo is a transducer
  5. e it allows us to span a wide range of intensitites using numbers that aren't absolutely enormous or totally minuscule.

5 Multiple choice questions

  1. intensity
  2. the intensity drops not in proportion to the distance but in proportion to the square of the distance
  3. amplitude
  4. Fo increases tend to be associated with amplitude increases due to physiological reasons
  5. WATTS divided by a unit area
    *if you take the amount of energy that a stereo is giving out and divide it across the surface of a sphere you see that there's less energy availabe per unit area as that sphere gets larger
    *it is simply spread out over a larger surface

5 True/False questions

  1. In the clinic what measurments are ok to use?relative measures as long as you're comparing like with like


  2. Why do we use logarithimic numbers and decibels?because values in watts are too cumbersome


  3. The inverse square law has important implications for what?intensity


  4. What is a VRP and what does it do?converts electrical energy into acoustic energy
    *a home stereo is a transducer


  5. How does RMS work?root mean square


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