Mechanical waves need a medium substance to travel through. Electromagnetic do not.
Sound Wave
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 through. This medium can be air, water, or a solid material like metal. Sound waves transfer energy by vibrating particles in the medium they are traveling through.
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.
Sound needs a medium, such as air, water, or a solid substance, in order to travel. This is because sound waves require particles in the medium to vibrate and carry the sound energy from the source to our ears. In a vacuum, where there are no particles for the sound waves to travel through, sound cannot propagate.
You'd have to say that the speed of sound waves in vacuum is zero, becausesound can't travel through vacuum at all. Not even an inch. Sound needs amaterial substance to travel through.
No, sound cannot travel in a vacuum because it requires a medium (such as air, water, or a solid material) to propagate. In the absence of a medium, there are no particles for sound waves to travel through, so sound cannot be transmitted.
It needs a material medium for propagation
Vacuum as sound needs badly a material medium to get it propagated.