# What are the properties of sound waves?

Oct 14, 2015

sound waves are mechanical waves so they need a medium for propagation.

#### Explanation:

The most fundamental properties of sound waves are:-
1. Wavelength
2. Frequency
3. Amplitude

Most of the other properties like speed,intensity etc. can be calculated from the above three quantities.

Oct 14, 2015

• They obey the wave equation $v = f \lambda$ and their speed through air at sea level is approximately $340 m / s$