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Review Science Cat 3

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  • True or False: the volume and the pitch of the sound are the same.
    False
  • the machine we use to measure the volume of the sound.
    sound level meter
  • Big or small: Which drum has a low-pitched sound?
    big drum
  • If you have a thinner guitar's string, the pitch will be .................​ (higher / lower)
    higher
  • to move from one place to another. 
    travel 
  • the unit we use to measure the volume of sound (dB)
    decibel 
  • Sounds travel by..................
    vibrations
  • Give one example of percussion instrument
    done
  • Which material do the sounds go best through?
    solid
  • how high or low a sound is. 
    pitch 
  • If you have a thicker guitar's string, the pitch will be .................​ (higher / lower)
    lower
  • Picking up a string with your finger and letting it go ​(P__ __ __ __)
    pluck
  • where something come from.
    source
  • Give one example of string instrument
    done
  • When we make the guitar’s string tighter (căng hơn), ​ we ............ (increase / decrease) the pitch of the sound. ​
    increase
  • Things that can change the result of an investigation (f __ __ __ __ __ __)
    factors
  • to make sounds softer and less clear.
    muffle
  • Big or small: Which drum has a high-pitched sound?
    small drum
  • a very small movement backwards and forwards
    vibration
  • the ........... (faster / slower) the vibrations, the higher the pitch of the sound
    faster
  • to shake very quickly back and forth
    vibrate
  • the ........... (faster / slower) the vibrations, the slower the pitch of the sound
    slower
  • how loud or soft a sound is
    volume
  • What two factors can change the pitch of the sound of the guitar?
    the length and the thickness of the strings
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