Question

sound cannot travel throughm vacuum.why?

Answer 1

this is B'cuz sound needs a medium to travel...... like air,water.....
but in vaccum there's nothin'like that!!!

Answer 2

A vacuum is a space that is free or void of any matter. Is that sound travels through the vibration of particles of matter. Since a vacuum is void of any matter, sound cannot travel through it because sound is a wave energy.