. How is the sound produced and how is it transmitted and heard by us
Answer: Sound is produced when the body starts vibrating by any force. This vibration produces waves which travel through a medium to reach the destination(Our ear) where it will be heard.
We hear the sound by our ears. The shape of the outer part of the ear is like a funnel. When sound enters it, it travels down a canal at the end of which there is a thin stretched membrane. It is called 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.