Topic 6.6 · 10 lessons
Waves
Transverse and longitudinal waves; wave speed; the electromagnetic spectrum, refraction, and the uses and dangers of EM waves.
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Lesson 1: Transverse and longitudinal waves explained
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Lesson 2: Describing waves: amplitude, wavelength, frequency and v = fλ
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Lesson 3: Measuring the speed of sound and water ripples
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Lesson 4: Waves required practical: ripple tank and vibrating string
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Lesson 5: The electromagnetic spectrum explained
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Lesson 6: Refraction explained: ray diagrams and wave fronts
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Lesson 7: Infrared required practical: the Leslie cube
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Lesson 8: Dangers of EM waves: UV, X-rays and gamma rays
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Lesson 9: Uses of electromagnetic waves explained
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Lesson 10: Waves exam questions: 5 worked examples
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