Question

explain why sound needs a medium to trawel​

Answer 1

Explanation:

Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves.

Answer 2

Explanation:

Because sound travels by creating disturbances which include the transfer of energy from one place to another. This energy transfer isn't possible without any medium. so Sound needs a medium to travel