Cambridge IGCSE Physics revision notes

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Lesson-12.1.2- State that the approximate range of audible frequencies for a healthy human ear is 20 Hz to 20 000 Hz

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Lesson-12.1.3- Show an understanding of the term ultrasound ??? Show an understanding that a medium is needed to transmit sound waves.Previous Lesson-12.1.1- Describe the production of sound by vibrating sources. Describe the longitudinal nature of sound waves.Next