AQA GCSE Physics Paper 1 H (Separate) Question Paper.

AQA Style Name Date Materials • A ruler • A pen and pencil • A calculator • Physics Equation Sheet Instructions • Answer all the questions using a black pen. • Answer the questions in the space available and cross out any work you do not want to be marked. • In any calculations make sure you show your working out. • The marks for each question are shown in brackets. • The maximum mark for the paper is 100. • You must make your work as neat as possible and use good English in your answers. Question Mark 1 2 3 4 5 6 7 8 9 Total GCSE PHYSICS Time allowed: 1 hour 45 minutes Higher Tier Physics Paper 1 1 of 27 A chef wants to melt 0.5kg of chocolate. The chef heats the chocolate over a pan of boiling water. The temperature of the chocolate increases by 9°C. The energy transferred to the chocolate was 9450J. Calculate the specific heat capacity of the chocolate. Use the correct equation from the Physics Equation Sheet. [3 marks] specific heat capacity = J/kg °C When the chocolate reaches 30°C, it starts to melt. The energy required for all of the chocolate to melt can be calculated using the equation: thermal energy for a change of state = mass × specific latent heat What is the difference between specific heat capacity and specific latent heat? [2 marks] Describe what happens to the temperature of the chocolate as it melts. [1 mark] Explain what will happen to the mass of the chocolate when it has all melted. [2 marks] 0 1 0 1 . 1 0 1 . 2 0 1 . 3 0 1 . 4 2 of 27 9 Melting is an example of a physical change. Explain why melting is a physical change rather than a chemical change. [1 mark] 0 1 . 5 Turn over for the next question