2007-03-28 03:23:15 · 3 answers · asked by LEE LEE 1 in Science & Mathematics ➔ Physics
Sound is a wave that travels through matter.
If there is no matter, there cannot be sound.
If there is matter (either liquid, solid or gas) there can be sound.
2007-03-28 03:57:14 · answer #1 · answered by Shawn D 2 · 0⤊ 0⤋
Sound is a longitudinal wave and needs a medium (such as air, water etc) in order for it to propagate.
In a vacuum, there is nothing to carry the sound, hence in space no-one hears you scream
2007-03-28 10:26:19 · answer #2 · answered by dudara 4 · 0⤊ 0⤋
"No air in it" isn't specific enough...
If there is to be no sound, it must be a VACUUM.
There can't be anything in the bottle to carry the waves (a bottle full of water has no air in it but it carrys sound.)
.
2007-03-28 10:50:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋