Question

How can you explain the sound has energy?

Answer 1

Hint: To produce energy, we have to use some other form of energy since the energy cannot be created. Therefore, to explain the sound has energy, we have to explain which energy is used to convert it into sound energy. You can start with how the sound wave is generated. The objects make sound when they are made to vibrate.

Complete answer:
We know that an object can produce sound by making vibrations and these vibrations causes the particles of the medium to vibrate back and forth to develop pressure waves. These pressure waves are carried to our ears and then we can hear the sound.

To explain the sound has energy, we can take the example of a drummer in a disco. When the drummer hits the drum with the stick, the kinetic energy of the stick is transferred to the drum and the drum produces sound. Thus, there is conversion of energy that is the kinetic energy to the sound energy. So, this can be the best example to prove the sound has energy.

Since we can hear the sound, the sound energy is the mechanical form of energy.

Note: Sound requires a medium to travel because it propagates by compressing the molecules in the medium. The sound cannot propagate through the vacuum because the vacuum does not have any molecules. Depending on how the sound wave vibrates, its nature can be identified whether it is loud or soft.