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A- Level Physics Paper 3 Question Paper

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A-level PHYSICS Paper 3 Section A Monday 3 June 2019 Afternoon Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formulae Booklet. ... Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • Do all rough work in this book. Cross through any work you do not want to be marked. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • Show all your working. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 45. • You are expected to use a scientific calculator where appropriate. • A Data and Formulae Booklet is provided as a loose insert. Section A box Answer all questions in this section. 0 1 Figure 1 shows a sealed radioactive source used in schools and colleges. Figure 1 0 1 . 1 State two safety procedures to reduce risk when using this type of source. [2 marks] Safety procedure 1 Safety procedure 2 0 1 box . 2 A sealed source contains radium-226 ( 226 88Ra ). 226 88Ra decays by emitting α and β– particles to produce 206 82Pb which is stable. Figure 2 is a graph of neutron number N against proton number Z, showing the different ways that 226 88Ra can decay into 206 82Pb . Points A to M represent all the unstable nuclei that may be formed as 226 88Ra decays into 206 82Pb . Figure 2 Determine the number of routes by which B can change into K. [1 mark] 0 1 . 3 Identify which of the nuclei A to M are common to all the possible ways that 226 88Ra decays into 206 82Pb . [3 marks] [Show More]

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