Is it possible for sound waves to travel through a vacuum?

[jenny(:]

Yes, sound waves require no medium to propagate.
No, sound waves require an elastic medium to propagate.
No, sound waves are absorbed by the vacuum.

CHOOSE ONE.

 

[turingschild]

Awww, you HAD to turn it into a homework help-me-cheat question. I thought you really wanted to know.

None of those answers sound right to me. Sound waves can travel through a 2x4 piece of wood faster than it can through the air.