Does sound travel faster through a vacuum or liquid

Speed of sound in standard air = 343 meters per second.
at high altitude (29,000 m) = 301 m/s
in water = 1497 m/s

Sound can't travel in a vacuum. But it very thin air, it travels slower than in liquids.

Silly Question!

'Sound" is vibrations in air or matter.

Since there is no matter in a vacuum, there is no sound! Did you ever hear the expression "nobody can hear you scream in space? So obviously, sound travels faster in liquid than in a vacuum.

The average speed of sound in air at normal altitude is about 343 meters/second (slows down the higher the altitude). In water, sound travels faster and further, about 1497 meters/second, because there is more matter backed into a liquid than in a gas.

Also, thank you for not tumbing down :-)

Sounds travel faster in liquids than in gases, and even faster in solids. The next time you are in a swimming with a diving board, try this experiment. If your ears are underwater when you hear the diving board, you can come out of the water fast enough that the you can hear when the sound- wave traveling through the air hits your eardrum and the cochlear canals in your ears. Go back underwater and put one ear on the wall of the swimming pool.. and wait for someone to go off the diving board. The sound reaches the ear against the wall before the sound in the water reaches your other ear. This is a very real life experiment that even an 8 year old can do. I did it when I was 10 years old. Seismic waves are just sound waves in solids and liquids, and sometimes gases. Longitudinal pressure waves like sound waves require a medium , so sound is not transmitted in a near vacuum or or vacuum.

http://en.wikipedia.org/wiki/Longitudina…

http://en.wikipedia.org/wiki/Speed_of_so…

http://en.wikipedia.org/wiki/Sound

No sound in vacuum period. Liquid is automatic answer to your specific question. Gas would allow sound to travel quickest though, i believe sound travels fastest through hydrogen gas due to its small mass.

Sound can't travel through a vacuum, as there's no matter. It travels through liquid slower than through air.

Liquid. Because sound cannot travel in a vacuum at all.

Sound won't travel *at all* through a vaccuum; so a liquid is the answer.

Sound can't travel at all through a vacuum, so what do you think?
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