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Science - Sound

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  • Amplifier
    Bộ khuếch tán âm thanh
  • When object vibrate slowly, the pitch is high/low
    Low
  • The louder volume has smaller/bigger vibrations
    Bigger vibrations
  • Pitch - how high or low the sound is
    Độ cao
  • When object vibrate quickly, the pitch is high/low
    High
  • The quieter volume has smaller/bigger vibrations
    Smaller
  • Ear defenders - protect your ears from loud sound
    Dụng cụ bịt tai
  • Loosen
    Nới lỏng
  • Tighten
    Kéo căng
  • Insulator
    Vật cách âm
  • Muffle - when you don’t want to hear something around you
    Cách âm
  • When you move further away from the sources of sound, the volume is high or low ?
    Low
  • The loudness of sound that depends on different materials is the …… variable.
    Dependent
  • The sources of sound that will not be changed through the investigation is the ….. variable.
    Control
  • Strong vibration produces loud/quiet sound
    Loud
  • The different materials (gas,solid,liquid )  that will be changed through the investigation is the…. variable.
    Independent
  • Volume - how quiet or loud the sound is
    Độ to
  • Weak vibration produces loud/quiet sound
    Quiet
  • Vibration - create the sound
    Sự rung động
  • When you move Closer to the sources of sound, the volume is high or low ?
    High
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