Multiple choice

What does loudness of sound depend upon?

  1. Its pitch

  2. Its frequency

  3. Its amplitude

  4. Its range
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Loudness is a perceptual quantity directly related to the amplitude of sound waves. Larger amplitude means greater displacement of air molecules, more energy, and perception of louder sound. Pitch depends on frequency, not loudness.

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