Physics of Sound and Light
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Questions and Answers

What does a decibel measure?

  • The speed of a sound
  • The relative intensity of a sound (correct)
  • The frequency of a sound
  • The amplitude of a sound

    • What is true about the relationship between light and sound travel?

  • Both light and sound require a medium to travel
  • Light requires a medium, but sound does not
  • Sound requires a medium, but light does not (correct)
  • Neither light nor sound require a medium

    • What type of wave is light?

  • Longitudinal wave
  • Mechanical wave
  • Electromagnetic wave
  • Transverse wave (correct)

    • What is the primary form of energy from the sun that reaches Earth's surface?

    <p>Infrared, visible, and ultraviolet light</p> Signup and view all the answers

    What is the definition of frequency?

    <p>The number of wave cycles in one second</p> Signup and view all the answers

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