OCR 2023 GCE Physics A H556/02: Exploring physics A Level Question Paper & Mark Scheme (Merged)

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 Which of these units is a base unit? A A B J C m2 D N Your answer [1] 2 The accepted value of g is 9.81 ms–2 . In an experiment to verify the value of g, students obtained a value of 10.20ms–2 . What is the percentage difference between the students’ value and the accepted value of g? A 1% B 2% C 4% D 8% Your answer [1] 3 Which of these statements is/are true? 1 Antiprotons are hadrons so are subject to the strong nuclear and weak nuclear forces. 2 Neutrons are subject to the weak nuclear force only. 3 The weak nuclear force is the only force that causes a change of quark type. A 1, 2 and 3 B Only 1 and 2 C Only 1 and 3 D Only 3 Your answer [1] 3 © OCR 2023 Turn over 4 A 200W heater is used for 90 minutes. The cost per kWh is 13 pence. How much did it cost to use the heater? A 3.9p B 39p C £2.34 D £23.40 Your answer [1] 5 The diagram shows the path of a nucleus entering a magnetic fie