Explanation :
The characteristics of sound waves are as follows :
(1) Intensity : The power per unit area carried by a sound wave is called as the intensity of wave. So, [tex]I=\dfrac{P}{A}[/tex]. Its unit is [tex]W/m^2[/tex].
(2) Loudness : Loudness means how the listener perceives the sound intensity. It is determined by the intensity of sound waves.
(3) Frequency : The number of to and fro oscillations of sound wave per unit time is called as its frequency. Its unit is Hz or Hertz.
(4) Pitch : Pitch means the quality of sound. It is closely related to frequency. For high pitch, the number of waves are more.
Explanation : Explain each characteristic of sound waves.
Intensity : the intensity of the sound wave is understand as the power carry by sound wave per unit area in the direction perpendicular to that area.
Loudness : loudness is the quality of the loud and soft of the sound wave.
Frequency : Human normal hear sound frequency between 20 Hz to kHz.
Pitch : Pitch is the quality of low and high of sound wave . pitch relates to the frequency of the slowest vibration in the sound wave for simple sound.
