Transcription of IGCSE, Physics, Paper 4 Theory (Extended), 0625/42, Jun21
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IGCSE, Physics, Paper 4 Theory (Extended), 0625/42, Jun21
This document has 16 IGCSE PHYSICS 0625/42 Paper 4 Theory (Extended) May/June 2021 1 hour 15 minutesYou must answer on the question additional materials are 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 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 [ ].DC (ST/JG) 198540/2 UCLES 2021 [Turn over*3872967880*20625/42/M/J/21 UCLES 20211 (a) Fig.]
5 UCS 2021 0625/42/M/J/21 [Turn over 3 Fig. 3.1 shows water flowing at very slow speed over a cliff edge. water rocks 15 m cliff edge Fig. 3.1 The water falls 15 m onto the rocks below. (a) Show that the velocity of the water when it strikes the rocks is 17 m / s. [4] (b) 30 kg of water flows over the cliff edge every second. Calculate the force exerted by the rocks on the falling water.
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