Mechanical waves need a medium substance to travel through. Electromagnetic do not.
It Can it needs a medium to travel
Sound needs a medium through which to travel. It will not travel in a vacuum.
No, it does not. It can travel through any open space. Sound, unlike light, needs a medium to travel. So light can travel through outer space but sound cannot because there is no medium.
Sound Wave
Sound will not travel through a vacuum as it needs a medium which will allow vibrations.
Sound needs a matter based medium, so it will not travel through vacuum.
Sound (and vibration) are a wave system of sequential compressions and rarefactions of a material. These waves are mechanical and do need a substance through which to travel. They cannot travel through a vacuum.
Sound needs a medium to travel. It cannot travel through a vaccum.
Sound cannot travel through vacuum. It needs a medium, such as air, water, earth, etc.
Since sound is a mechanical wave (it needs a substance to travel through) it cannot travel through a vacuum.
It needs a material medium for propagation
Nope, sounds doesn't travel faster on space because a medium is needed a region to another