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Question

A loud sound can travel long distance because it has higher.

A
frequency
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B
energy
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C
wavelength
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Solution

The correct option is B energy
Since the loudness of the sound wave is determined by its amplitude, a loud sound has more amplitude and hence more energy. Energy is proportional to the square of its amplitude. As the sound wave travels through a medium, its energy decays. Therefore, a sound wave with higher energy will travel a longer distance.

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