Sound Waves and Human Hearing
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Questions and Answers

What does the outer ear part 'Pinna' do?

  • Collects sound, acting as a funnel to amplify sound and directing sound toward the ear canal. (correct)
  • Is a tube running from the outer ear to the middle ear.
  • Transmits sound vibrations to the auditory nerves.
  • Converts sound into electrical signals through mechanoelectrical transduction.
  • What is the definition of sound intensity?

  • The change in the static pressure of any media when a sound wave is passing through.
  • The logarithm of the ratio of a given sound pressure to the reference sound pressure in decibels.
  • The sound power per unit area, with basic units in watts/m2. (correct)
  • The process where the ear transforms sound vibrations into nerve impulses.
  • What is the function of the middle ear?

  • Transmits sound vibrations from the outer ear to the inner ear. (correct)
  • Collects sound and transmits it to the auditory nerves.
  • Transforms sound vibrations into nerve impulses that are interpreted by the brain as sounds.
  • Acts as a funnel to amplify sound and directing sound toward the ear canal.
  • How is sound pressure level defined?

    <p>The logarithm of the ratio of a given sound pressure to the reference sound pressure in decibels.</p> Signup and view all the answers

    What is the process called when the ear transforms sound vibrations into nerve impulses?

    <p>Mechanoelectrical transduction</p> Signup and view all the answers

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