A tuning fork is vibrating the air around it. What best describes the waves produced by the tuning fork?

Question

mechanical, because the air molecules are moving perpendicular to the tuning fork
mechanical, because the vibrating tuning fork makes air molecules around it vibrate
electromagnetic, because the air molecules are moving parallel to the tuning fork
electromagnetic, because the vibrating tuning fork does not need air in order to produce sound

Answer 1

The best description of the waves produced by the tuning fork is:

mechanical, because the vibrating tuning fork makes air molecules around it vibrate.

Sound waves are mechanical waves that require a medium (such as air) to travel through, and they are produced by the vibration of an object (like a tuning fork) that causes the surrounding air molecules to move.