Multiple choice

The intensity or loudness of sound is measured in

  1. decibel

  2. watt

  3. volt

  4. ampere

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sound intensity or loudness is measured in decibels (dB), a logarithmic unit. Watt measures power, volt measures electrical potential, and ampere measures electric current. The decibel scale quantifies sound pressure level relative to a reference threshold.