Sound Waves and Human Perception
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Questions and Answers

Which of the following is true about sound waves in air at atmospheric pressure?

  • They have frequencies ranging from 20 Hz to 20 kHz
  • They are audible to humans
  • They have wavelengths ranging from 17 meters to 1.7 centimeters (correct)
  • They are known as ultrasound

    • What is the frequency range within which audio waves elicit an auditory percept in humans?

  • Below 20 Hz
  • Above 20 kHz
  • 17 meters to 1.7 centimeters
  • 20 Hz to 20 kHz (correct)

    • What is the term for sound waves above 20 kHz that are not audible to humans?

  • Mechanical waves
  • Acoustic waves
  • Infrasound
  • Ultrasound (correct)

    • Which field of science deals with the study of mechanical waves in gasses, liquids, and solids, including sound and ultrasound?

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

    What is the term for sound waves below 20 Hz?

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

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