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All About Sounds

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  • These are the parts of your ear that sticking on the sides of your head.
    Outer ears
  • This is how loud or quiet the sound is.
    Volume
  • This is how high or low a sound is.
    Pitch
  • Sound travels through air as _______________.
    Compression Waves
  • This sound is when the frequency is high.
    High-pitched sound
  • A glass filled with water has a higher frequency than that of an empty one. True or False.
    False
  • This means moving an object forwards and backwards very quickly.
    Vibration or Vibrating
  • The part of the ear that sends signals to the brain.
    Auditory nerve
  • This is where the sound came from.
    Sound Source
  • Sound travels faster in solids and slower in gas or air.
    True
  • This is when the volume is very high.
    Loud
  • It is something we can observe as it happens but we cannot see how it is happening.
    Phenomenon
  • This sound is when the frequency is low.
    Low-pitched sound
  • This is when the volume is very low.
    Quiet
  • Why can't you hear in the outer space?
    I can't hear in the outer space because there is no air. It is a vacuum.
  • This sound is unpleasant or not good to hear.
    Noise
  • What unit is used to measure the volume of sound?
    Decibel (dB)
  • What unit is used to measure the frequency of sound?
    Hertz (Hz)
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