Explain how sound is produced from your school bell
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BY THE VIBRATION OF AN OBJECT
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When the school bell vibrates, it forces the adjacent particles in air to vibrate. This disturbances give rise to a wave and when the bell moves forward, it pushes the air in front of it. This creates the region of high pressure know as compression. When the bell moves backwards, it creates the regions of low pressures known as rarefaction. as the bell continues to move forward and backward, it produces series of compression and rarefaction, which makes the sound of bell propagate into air.
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