OCR A Level Physics A H556/03 Unified physic JUNE 2022

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A Level Physics A H556/03 Unified physic JUNE 2022 Time allowed: 1 hour 30 minutes INSTRUCTIONS • Use b ... lack ink. You can use an HB pencil, but only for graphs and diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answers should be supported with working. Marks might be given for a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 70. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 20 pages. ADVICE • Read each question carefully before you start your answer. © OCR 2022 [601/4743/X] DC (ST/FC) 300374/6 OCR is an exempt Charity Turn over Answer all the questions. 1 The table shows some data on the planet Venus. Mass / kg 4.87 × 1024 Radius / km 6050 Density of atmosphere at surface / kg m–3 65 Period of rotation about its axis / hours 5830 (a) Calculate the magnitude of the gravitational field strength g at the surface of Venus. Give your answer to 3 significant figures. g = N kg–1 [3] (b) Two identical space probes, A and B, land on a flat surface on Venus. Probe A lands at the north pole. Probe B lands on the equator. Each probe has mass 760 kg and volume 1.7 m3. (i) Calculate the centripetal acceleration a of probe B at the equator due to the rotation of Venus about its axis. a = m s–2 [3] [Show More]

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