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A short lesson about sound waves
Sound waves are longitudinal waves of moving particles. Sound waves cannot pass through a vacuum.
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A brief description of sound waves
Source: Mrs G Boyson: http://www.knowmia.com/watch/lesson/45685
A revision video to help revise for science exams for AQA GCSE science and AQA GCSE Physics (p1) and to help you understand the link between frequency and pitch, amplitude and volume.