Question

Vibrations are necessary for producing sound . Explain why we cannot hear the sound produced by every vibrating body ?

Answer 1

it is true that vibrations are necessary foe producing sound but the human sound range is from 20hz to 20khz so we cannot hear every vibrating body due to a fix hearing frequency.

Answer 2

Three things vibrate when sound is created: the source object, the molecules in the air, the eardrum.

When a sound is produced, its causes the air molecules to bump into their neighboring molecules, who bump into their neighbours. When we are hear something, we are sensing the vibrations in the air. This vibrations enter the outer ear and cause the eardrum to vibrate too.