Question

Vibrations in a body produce sound. How do you prove it?

Answer 1

Recall the concept of transfer of the sound in a medium. Relate this concept of transfer of the sound in a medium with the transfer of vibrations in a body.

Complete step by step answer: The sound is the disturbance in the mediums such as solid, liquid or gas. It is necessary to have a medium for the transfer of the sound waves.

When a body vibrates, the vibrations in the body also start vibrating the particles in the surrounding medium.

These vibrations are transferred through the medium in which the body is vibrating.

Due to these vibrations, the particles in the medium start to vibrate and pass the energy of the adjacent particle to the next particle.

In such a way, the vibrations in the form of a sound wave are produced and travel through the medium.

If the vibrations are more then the sound produced is more loud as the more vibrations indicates the more frequency of the oscillations.

Therefore, the vibrations and hence the sound is transferred through the medium.

This proves that the vibrations in a body produce sound.

Additional information:

The statement that the vibrations in a body produce sound can be proved with the help of some examples.

To play a guitar, the threads on the guitar are vibrated in a specific manner. These vibrations of the guitar produce sound.

Note: The vibrations of the body must produce the vibrations of the medium particles parallel to the direction of propagation of the wave in order to produce a sound as the sound wave is a longitudinal wave.