change in speed of sound?

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change in speed of sound?

why does speed of sound change if the temp increases as it results in a decrease in density of air but the speed of sound increases through denser substances and reduces in rarer substances.

2006-11-03 06:01:33 · 2 answers · asked by Richard 3 in Science & Mathematics ➔ Physics

2 answers

My reference indicates that the speed of sound decreases in a denser substance, rather than increases. This would be consistent with an increase in velocity in warmer air, because air decreases in density with heat, just as you indicated.

2006-11-09 08:43:21 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋

Give an example of one of the substances...

2006-11-03 06:46:25 · answer #2 · answered by eugene w 1 · 0⤊ 0⤋