IG 物理考试4卷 真题.pdf

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IG Physics 4卷 Past papers 2018-2021 ™ Cambridge IGCSE * 8 3 PHYSICS 0625/42 2 4 Paper 4 Theory (Extended) February/March 2021 5 0 1 hour 15 minutes 9 7 You must answer on the question paper. 6 7 * [No additional materials are needed.] INSTRUCTIONS ● Answer all questions. ● Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs. ● Write your name, centre number and candidate number in the boxes at the top of the page. ● Write your answer to each question in the space provided. ● Do not use an erasable pen or correction fluid. ● Do not write on any bar codes. ● You may use a calculator. ● You should show all your working and use appropriate units. ● Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m/ s2). INFORMATION ● The total mark for this paper is 80. ● The number of marks for each question or part question is shown in brackets [ ]. This document has 16 pages. Any blank pages are indicated. DC (CJ/CGW) 203605/2 © UCLES 2021 [Turn over 2 2 1 (a) Fig. 1.1 shows a piece of glass of thickness 2.0cm and area

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