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5 Written Questions

5 Matching Questions

  1. what is used to accurately describe the characteristics of a sound wave
  2. what are some different types of waves
  3. how does ultrasound work
  4. what is constructive interference
  5. transverse wave
  1. a the interference of a pair of in phase waves forms a single wave of greater amplitude than either of its components--the resulting wave is larger than its components
  2. b there are 7 acoustic parameters: period, frequency, amplitude, power, intensity, wavelength, propagation speed----wif papp
  3. c particles move in a direction that is perpendicular (at right angles) to the direction that the wave propagates
  4. d sound, light, magnetic, and heat
  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. cm,mm
  2. sound is a mechanical longitudinal wave that moves by compression and rarefaction--particles in the medium vibrate back and forth from a fixed position
  3. that wave is a sound wave
  4. kg/cm cubed
  5. a 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

5 True/False Questions

  1. interference of waves with different frequenciesoscillations in acoustic variables

          

  2. what does sound need to traveloscillations in acoustic variables

          

  3. interferenceparticles move in a direction that is perpendicular (at right angles) to the direction that the wave propagates

          

  4. what happens to the molecules in a medium as sound waves pass through?the molecules are alternately compressed and rarefied (stretched apart)

          

  5. if something other than pressure, density, or distance has a rhythmic oscillation thenthat wave is a sound wave

          

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