Question

Sound waves travel fastest through a A) gas. B) liquid. C) solid. D) vacuum.

Answer 1

Sound waves travel faster through solids than they do through gases or liquids.  (C)  They don't travel through vacuum at all.

Example:

Speed of sound in normal air . . . around 340 m/s

Speed of sound in water . . . around 1,480 m/s

Speed of sound in iron . . . around 5,120 m/s