In which medium does sound travel faster?

Options

A. Gas
B. Liquid
C. Solid
D. Vacuum

Answer

C

Explanation

Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. The distance in liquids is shorter than in gases, but longer than in solids. Liquids are more dense than gases, but less than solids, so sound travels second fast in liquids. In gases, sound travels the slowest because they are the least dense, the molecules in gases are very far apart, compared to solids and liquids.