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OCR 2023 GCSE Physics A Gateway J249/04: Paper 4 (Higher Tier) Question Paper & Mark Scheme (Merged
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2 © OCR 2023 Section A You should spend a maximum of 30 minutes on this section. Write your answer to each question in the box provided. 1 A sound wave travels from air into water. Which quantity stays the same? A Amplitude B Frequency C Speed D Wavelength Your answer [1] 3 © OCR 202...
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