Question

Why sound waves are called mechanical waves?
Suppose you and your friend are on the moon. Will you be
able to hear any sound produced by your friend?​

Answer 1

Answer: The sound produced by our body cannot be propagated while on the surface of the moon.

Explanation:

Will you be able to hear any sound produced by your friend ? The moon has no atmosphere or material medium through which sound can travel. Hence, the sound produced by our body cannot be propagated while we are on the surface of the moon.

Answer 2

Explanation:

Sound waves are mechanical waves because they need a material medium for propagation,

like air or liquids like water, or metals like silver. The moon has no air or atmosphere at all. It is a vacuum. since sound cannot travel through vacuum therefore we cannot hear the sound produced by our friend.