Question

Which statement best defines why sound waves are mechanical waves?

A. They require a medium in which to travel
B. They can travel through a vaccum
C. They can travel only through solids
D. They can travel through gases

Answer 1

A. They require a medium in which to travel

Step-by-step explanation:

Answer 2

The correct answer among the choices presented above is option A. Sound waves are considered as mechanical waves because they require a medium in which they can travel through. A mechanical wave is a wave that cannot transmit energy in a vacuum. It needs something to move energy.