Study

Sound

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  • We can measure the sound using ………
    Sound level meter
  • Slow vibration makes …. (High/low) pitch.
    Low
  • Small vibration makes ….. (loud/soft) sound.
    Soft
  • Loosen the string makes the pitch lower. True or False?
    True
  • Guitar is an example of wind instrument. True or False?
    False
  • We can muffle the sound that we don’t want to hear using …..
    Ear defencer
  • We can make a pitch louder by tightening the string in a string instrument. True or False?
    True
  • In building, we can use …… and ……… to muffle the sound.
    Carpet and curtain
  • Fast vibration makes ….. (high/low) pitch.
    High
  • Sound travels in …..
    Vibration
  • Weak vibration makes ….. (loud/soft) sound.
    Soft
  • Big vibration makes ….. (loud/soft) sound.
    Loud
  • Sound is produced when things …..
    Vibrate
  • Recorder is a wind instrument. True or False?
    True
  • Vibrations make …..
    Sound
  • We play a string instrument by plucking it. True or False?
    True
  • We can make sound louder using …..
    Microphone, amplifier, sound system, speaker
  • Thicker string produces higher pitch. True or false?
    False
  • Hard vibration makes ….. (loud/soft) sound.
    Loud
  • Muffle the sound means make the sound quieter. True or False?
    True