Sound waves are disturbances that travel through matter and can be categorized based on their frequency ranges. These frequencies determine the type of sound wave—infra sound consists of frequencies below 20 Hz.
Qualities long or short depending on its length of vibrations.
It is different depending on its....
It is commonly associated in air, sound will readily travel through many materials. It will absorb much of the sound waves preventing the waves from penetrating the material.
Travels through matter
Main topic
It depends on the frequency of its vibration.
In music it is related to notes ( A-B-C-D-)
It is precieved by means of...
Ear
Can be classified into three groups, according to their frequency ranges. Infra sound consists of frequencies below 20hz.