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Cambridge IGCSE Physics Revision Core Concepts Exam Preparation Online
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Contents
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Lesson 3.4.1: Sound Wave Properties ??? Nature, speed, and frequency range (20 Hz to 20 kHz).
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Lesson 3.3.1: Electromagnetic Spectrum ??? Properties and uses of radio, microwave, infrared, visible, UV, X-ray, and gamma rays.
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Lesson 3.4.2: Sound Reflection and Pitch ??? Echoes, loudness, and pitch variation with frequency.
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