What makes something loud?

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How does loudness work? I looked up what a decibel was on Wikipedia and my eyes melted. How does measuring the loudness of something work? What actually happens when we experience a sound as really loud or really quiet?

In: Physics

7 Answers

Anonymous 0 Comments

Sound is just pressure waves moving through air. So it’s just air moving around. The more air you move, the more it moves things in your ear, we feel that as more loudness.

Edit: removed “perceive” and explained more for the 5yos. Thanks u/RcNorth

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