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  • young girl playing with musical instruments at a playcentre.
    Rights: University of the Fraser Valley, CC BY 2.0 Published 16 August 2021 Size: 8.4 MB Referencing Hub media

    The size (amplitude) of the vibration determines the volume of the sound. The amplitude of the vibration carries the energy. A big vibration causes large sound waves that transmit a lot of energy. The resulting volume of sound is loud – for example, hitting a table with a ruler.

    A small vibration causes small sound waves that transmit less energy. The resulting volume of sound is soft – for example, tapping a table with a ruler.

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