S3+Physics

Lesson slides
[|S3 Lesson Slides]

Sound Waves and their Sources (1933)
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What is up with Noises? (The Science and Mathematics of Sound, Frequency, and Pitch)
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What is color?
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TEDxCardiff - Robert Simpson - The Hidden Universe
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Some Int 2 past papers + marking instructions
[|Past Papers and Marking Instructions]

Other topics
Energy and electricity Dynamics and space