define the sound and it's product
Answers
Explanation:
Sound And It's Production
The sensation felt by our ears is called sound . Sound is a form of energy. Sound is that form of energy which make us hear many sounds around us in our everyday life .
The sound of our voice is produced by the vibrations of two vocal cords in our throat caused by air coming from the lungs .
The sound of a drums is produced by the vibration of its skin when struck.
The sound of the flute is produced by the vibrations of air and closed in the flute tube.
The sound of school bell is produced by the vibrations of an iron or brass plate when it is hit by a Hammer.
Sound in a radio is produced by the vibrations of things diaphragm of a speaker .
In most of the places a sound producing objects vibrate so fast that we cannot see it's vibrations with our eyes .
Sound travels in air through compressions and rarefactions. There is no actually movement of us air from the sound producing body to our ears. The air layers only vibrate back and forth and transfer the sound energy from one layer to the next layer till it reaches our ears .
if we turn on a gas steps for a few seconds , a person standing a few metres away will hear the sound of escaping gas first and the smell of gas reaches him afterwards because sound of gas travels through the vibrations of air layer so it reaches first, but the smell of gas reaches the person through the actual movement of the air layers which takes more time .