How does the speed of sound in water compare to the speed of sound in air?

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Answer 1 · 2018-03-30T12:08:54

Sound is a compression wave. also known as a longitudinal wave

Sound travels by molecules getting compressed together. So, louder sounds have more molecules compressed into a given space than does a softer sound.

Since water is more dense than air (the molecules are closer together), that means that sound travels faster in water than it does in air.