Ultrasound Physics Basics Quiz
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Questions and Answers

What is the wavelength of a sound wave?

  • The stiffness of the medium
  • The number of cycles per second
  • The distance traveled during one cycle (correct)
  • The change in pressure during one cycle
  • In what way do sound waves propagate?

  • Circular motion
  • Transverse motion
  • Side-to-side motion
  • Longitudinal motion (correct)
  • What is the frequency of a sound wave measured in?

  • Watts
  • Cycles per second or Hertz (correct)
  • Decibels
  • Meters per second
  • Which type of waves typically have frequencies between 2MHz and 20 MHz in diagnostic ultrasound?

    <p>Ultrasound waves</p> Signup and view all the answers

    What is the major source of attenuation in soft tissue as sound waves travel through it?

    <p>Absorption</p> Signup and view all the answers

    How does the propagation speed of an acoustic wave through a medium relate to the stiffness of the medium?

    <p>The greater the stiffness, the faster the wave will travel</p> Signup and view all the answers

    What is the frequency range for audible sound in humans?

    <p>20 Hz - 20 kHz</p> Signup and view all the answers

    How do sound waves travel through a medium?

    <p>Longitudinal motion</p> Signup and view all the answers

    What is the speed at which sound waves travel through human soft tissue?

    <p>1540 m/s</p> Signup and view all the answers

    Which type of waves fall under the category of ultrasound?

    <p>Waves with frequencies above 20 kHz</p> Signup and view all the answers

    What determines the propagation speed of an acoustic wave through a medium?

    <p>Stiffness of the medium</p> Signup and view all the answers

    What is absorption the major source of in soft tissue as sound waves pass through it?

    <p>Conversion of acoustic energy into heat</p> Signup and view all the answers

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