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2.11 Intensity and Power in Acoustics
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2.11 Intensity and Power in Acoustics

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Questions and Answers

What is the unit for measuring acoustic energy generated per unit time?

  • Watts
  • Joules per second (correct)
  • Watts per square centimeter
  • Joules

    • How is intensity defined in relation to power?

  • Intensity is the rate at which power flows through an area. (correct)
  • Intensity is the power concentration within a volume.
  • Intensity is the total power generated in a system.
  • Intensity is the speed at which power is generated.

    • What unit is used to express intensity?

  • Watts per square centimeter (correct)
  • Watts
  • Milliwatts per square meter
  • Joules per second

    • How does intensity vary within an ultrasound beam?

    <p>It is greatest in the center of the beam.</p> Signup and view all the answers

    What determines the intensity in a pulsed ultrasound beam?

    <p>The pulse amplitude only</p> Signup and view all the answers

    How are biological effects of ultrasound related to power?

    <p>Power influences the biological effects of ultrasound.</p> Signup and view all the answers

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