Characteristics of a sound wave, Frequency, Amplitude, speed, Time period
Characteristics of a sound wave There are many characteristics of sound wave. (1) Frequency (2) Speed (3) amplitude Distinguish between loudness and intensity of sound (1) Loudness is a measure of the response of the ear to the sound. Intensity is the amount of sound energy passing each second through unit area. (2) Loudness is measured in decibels (db). Whereas intensity is measured in watt per meter square (W/m 2 ). (3) Loudness is a subjective quantity. Intensity is an objective quantity. (4) Loudness depends on Amplitude. Intensity depends on the Frequency and the Amplitude of the sound. (5) In the Loudness , if the Amplitude is high, the loudness will be high. The sound intensity is directly proportional to the square of the amplitude of sound wave. (6) Loudness is dependent on the sensitivity of the human ears. The intensity is independent