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can sound energy be changed to any useful form of energy? example. where does the sound energy from crackers go?

can sound energy be changed to any useful form of energy? example.


where does the sound energy from crackers go?

Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
148 Points
14 years ago

Dear aman

Since sound is a form of energy, it can be changed from one form to another. Other forms of energy can be transformed into sound. Sound energy can be changed into electrical energy.

Example.

Technology enables us to "connect" with other people who are not in the room with us. The telephone converts sound energy into electrical energy, and back into sound energy again.

 

As a sound wave moves along, its loudness or volume decreases as its energy is spread out over a larger and larger domain. For a wave spreading out equally in all directions (spherical symmetry), the loudness of the wave dimishes rapidly. In a uniform medium, the the sound energy is spread over a sphere that gets larger and larger as the wave moves away from its source. This is called SPHERICAL SPREADING. In this case, the loudness (the energy flow divided by the area) decreases in proportion to the square of the distance from the source.

 


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Badiuddin

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