Physics GCSE

pressure variations

What pressure variations means in Physics GCSE, as defined for AQA.

Definition of pressure variations

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Reference: AQA

A series of compressions and rarefactions in sound arriving at the microphone, so the air pressure at the diaphragm rises and falls.

AQA · Microphones (HT only) (study guide)

Topics that use pressure variations

Microphones (HT only) (AQA GCSE)

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Using pressure variations in the exam

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