A-level PHYSICS Paper 2

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. • 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). • Do all rough work in this book. Cross through any work you do not want to be marked. • Show all your working. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 85. • You are expected to use a scientific calculator where appropriate. • A Data and Formulae Booklet is provided as a loose insert. Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level PHYSICS Paper 2 2 *02* IB/M/Jun20/7408/2 Section A Answer all questions in this section. 0 1 A perfectly insulated flask contains a sample of metal M at a temperature of –10 °C. Figure 1 shows how the temperature of the sample changes when energy is transferred to it at a constant rate of 35 W. Figure 1 0 1 . 1 State the melting temperature of M. [1 mark]