Explain how sound is produced by your school bell. How does the sound produced by a vibrating object in a medium reach your ear

Explain how sound is produced by your school bell.

When the sound waves travel through the material medium, then the particles of the medium undergo compression and rarefaction. When the vibrating object moves forward, it pushes and compresses the air in front of it creating a region of high pressure. This region is called as compression. When the vibrating object moves backwards, it creates a region of low pressure called rarefaction. Here, the school bell consists of a hammer and gong is connected to an external source of the current. When the school bell is hit with a hammer, the hammer hits the gong continuously that causes compression and rarefaction in the air. These vibrations travel in the air in the form it starts vibrating(moves backward and forward), a series of compressions and rarefactions is created in the air and   these makes the sound waves propagate through the medium  as a result sound is produced in the school bell.

 

 

 

 

 

Question:-- How does the sound produced by a vibrating object in a medium reach your ear ?

Sound is produced in a material medium by a vibrating object. Air is the most common medium through which the sound travels. When the vibrating object moves forward, it pushes and compresses the air in front of it creating a region of high pressure. This region is called as compression. And it is denoted by the letter C. this compression starts to move away from the vibrating object.

When the vibrating object moves backwards, it creates a region of low pressure called rarefaction. And it is denoted by R.

As the object moves back and forth rapidly, a series of compression and rarefactions is created in the air. These make the sound wave that propagates through the medium.

Compression is related of the region of the high pressure. And the rarefaction is the region of the low pressure.

Pressure is related to the number of particles of a medium in a given volume. More density of the particle in the medium gives more pressure and low density of the particles in the medium gives low pressure.

Thus the propagation of the sound can be visualised as propagation of density vibrations or pressure vibrations in the medium.

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