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5 Written questions

5 Matching questions

  1. sound waves are also known as
  2. how does ultrasound work
  3. units of pressure
  4. how are sound waves identified
  5. what do waves do
  1. a all waves carry energy
  2. b oscillations in acoustic variables
  3. c pascals (Pa)
  4. d acoustic waves
  5. e sound pulses through biologic tissue or media and reflections arising from structures in the body return to the xducer and are processed into images

5 Multiple choice questions

  1. when the frequencies of the waves differ, both constructive and destructive interference occur
  2. straight or longitudinal
  3. the wave is not a sound wave
  4. pressure, density, and distance
  5. the effects of the medium upon the sound wave (compression and rarefication)

5 True/False questions

  1. what is constructive interferencethe resultant wave is smaller (of lesser amplitude) than either one of its components

          

  2. what does sound need to traveloscillations in acoustic variables

          

  3. transverse wavea pair of waves are considered in phase when their peaks (maximum values) and troughs (minimum values) occur at the same time and in the same location

          

  4. longitudinal waveparticles move in a direction that is perpendicular (at right angles) to the direction that the wave propagates

          

  5. in phase wavesa pair of waves are considered in phase when their peaks (maximum values) and troughs (minimum values) occur at the same time and in the same location

          

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