Question

What mechanical waves needs a medium to travel through?

A. all mechanical waves need a medium to travel through
B. surface waves only
C. transverse and longitudinal waves only
D. longitudinal and surface waves only

Answer 1

A) all mechanical waves need a medium to travel through.
This is true because mechanical waves move in a wave like manner at the atomic level. This is why an table vibrates when you put a speaker on top of it .

Answer 2

Answer: A. All mechanical waves needs a medium to travel through.

Step-by-step explanation:

Mechanical waves are waves that require a medium to propagate their energy. Examples of mechanical waves include : Transverse wave, Longitudinal wave and Surface wave.