Question

a) Explain how sound is produced by your school bell



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Answer 1

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Sound produced by the school bell is dependent on how the bell vibrates when it is hit. When the bell moves forward, it pushes the air particles in the front creating a region of high pressure which is known as compression. When the bell moves backward, a low pressure region is created which is known as rarefaction.

Answer 2

When the school bell vibrates, it forces the adjacent particles in air to vibrate. This disturbance gives rise to a wave and when the bell moves forward, it pushes the air in front of it. This creates a region of high pressures known as compression. ... This makes the sound of a bell propagate through air.