Understanding Sound Waves Properties Quiz
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Questions and Answers

What determines the highness or lowness of sound, also known as a musical note?

  • Intensity
  • Frequency (correct)
  • Amplitude
  • Timbre
  • Which term refers to the amplitude of a sound wave determining its loudness or volume?

  • Timbre
  • Frequency
  • Intensity (correct)
  • Pitch
  • What do ultrasonic frequencies refer to in the context of sound waves?

  • Frequencies below 20 Hz
  • Frequencies audible to humans
  • Frequencies beyond 20,000 Hz (correct)
  • Frequencies between 20 to 20,000 Hz
  • Which animal can hear sounds as high as 50,000 Hz according to the text?

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

    What does timbre refer to in relation to sound properties?

    <p>Sound quality</p> Signup and view all the answers

    What is the term used for extremely low frequencies in the context of sound waves?

    <p>Infrasonic frequencies</p> Signup and view all the answers

    What is the unit of sound intensity level?

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

    How is sound intensity measured?

    <p>With an oscilloscope</p> Signup and view all the answers

    What does an increase of 1 dB on the decibel scale mean?

    <p>Sound intensity is increased by a factor of 10</p> Signup and view all the answers

    Which musical sound quality is used for differentiating two sounds with the same frequency?

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

    What is the characteristic defining sound waveform that determines timbre?

    <p>Material it passes through</p> Signup and view all the answers

    To possess timbre, how many harmonics must a sound have in addition to the fundamental frequency?

    <p>Seven or more</p> Signup and view all the answers

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