Sound travels fastest in air. Sound travels faster than light. Sound travels as longitudinal waves. Sound travels as transverse waves.
I gave my students this multiple choice question: Which statement best describes the nature of sound?

Only one answer is correct among these 4 choices:
- Sound travels fastest in air.
- Sound travels faster than light.
- Sound travels as longitudinal waves.
- Sound travels as transverse waves.

Could you tell me which one is correct?

Sound travels as longitudinal waves.