Study

Sound

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  • To make different pitches in the flute, we need to ... some holes in the flute.
    close
  • Construction workers use ... to prevent noise pollution.
    ear mufflers
  • High-pitched sound is made by ... vibrations.
    fast
  • The sound that is too loud, we called ...
    noise pollution
  • When we whisper we produce about ... dB sound.
    20
  • To make a beautiful sound on guitar, we need to ... the strings.
    tune
  • Soft volume is made by ... vibrations.
    small
  • To measure the volume of sound, we can use a tool called ...
    sound level meter
  • We can make a guitar produce sound by ... the string.
    plucking
  • We can make a flute produce sound by ... the flute holes.
    blowing
  • The sound system consists of ... , ... , and ... .
    the microphone, the amplifier, and the speaker
  • Low-pitched sound is made by ... vibrations.
    slow
  • Give me an example of noise pollution.
    Examples of noise pollution are traffic, horns, etc.
  • Sound is made by ...
    vibration
  • The average sound that we can hear is ... dB.
    85
  • To make the sound more loud we use ...
    the sound system
  • dB means ...
    decibel
  • We use ... to prevent noise pollution at home.
    curtains
  • Loud volume is made by ... vibrations.
    big
  • Baby crying is ... dB.
    110
  • Unit measurement of sound is ...
    decibel
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