Sound Waves and Properties

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Questions and Answers

What is the unit used to measure the volume of sound?

  • Decibel (correct)
  • Vibration
  • Amplitude
  • Hertz

Sound travels fastest through gases.

False (B)

What is the device used to measure the volume of sound?

Sound level meter

Fast vibrations produce a ______________ pitched sound.

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

Match the characteristics of sound with their definitions:

<p>Volume = How loud or quiet the sound is Pitch = Is how high (sharp) or low (rough) that sound is Vibration = The movement of an object back and forth Amplitude = The loudness of a sound</p> Signup and view all the answers

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Study Notes

Sound Travel

  • When an object vibrates, it collides with surrounding air particles, causing them to vibrate too.
  • These vibrations travel in waves, known as sound waves.
  • Sound waves can travel through solids, liquids, and gases.
  • Sound travels best through solids.

Sound Limitations

  • Sound cannot travel in a vacuum.

Sound Properties

  • Volume: refers to how loud or quiet the sound is.
  • A sound level meter is used to measure the volume of sound.
  • The unit of measurement for sound volume is the decibel (dB).

Pitch

  • Pitch refers to how high (sharp) or low (rough) a sound is.
  • Slow vibrations produce a low-pitched sound.
  • Fast vibrations produce a high-pitched sound.

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