We hear Sound through Our Ears
The shape of the outer part of the ear is like a funnel. When sound enters in it, it travels down a canal at the end of which a thin membrane is stretched tightly. It is called the eardrum. It
performs an important function. To understand what the eardrum does, let us build a tin can model of the eardrum.The eardrum is like a stretched rubber sheet. Sound vibrations make the eardrum vibrate. The eardrum sends vibrations to the inner ear. From there, the signal goes to the brain. That is how we hear.
Sound - Notes
6. Sound Needs a Medium for Propagation
7. Sound is Produced by a Vibrating Body