AQA GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/3F (JUN2384653F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences QUESTION PAPER & MARKING SCHEME/ [MERGE

GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/3F (JUN2384653F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-point pen. Pencil should only be used for drawing. l Fill in the boxes at the top of this page. l Answer all questions in the spaces provided. Do not write outside the box around each page or on blank pages. l 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). l Do all rough work in this book. Cross through any work you do not want to be marked. l In all calculations, show clearly how you work out your answer. Information l The maximum mark for this paper is 100. l The marks for questions are shown in brackets. l You are expected to use a calculator where appropriate. l You are reminded of the need for good English and clear presentation in your answers. For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Please write clearly in block capitals. Centre number Candidate number Surname ________________________________________________________________________ Forename(s) ________________________________________________________________________ Candidate signature ________________________________________________________________________ I declare this is my own work. F 2 (02) G/Jun23/8465/3F Do not write outside the box 0 1 This question is about acids and alkalis. Universal indicator is used to measure the pH of solutions. 0 1 . 1 Which is a pH value of an alkaline solution? [1 mark] Tick () one box. 5 7 9 0 1 . 2 Which is a colour of universal indicator in an alkaline solution? [1 mark] Tick () one box. Blue Red Yellow 0 1 . 3 What piece of equipment measures the pH of a solution more accurately than universal indicator? [1 mark] ___________________________________________________________________________________ 3 (03) G/Jun23/8465/3F Do not write outside the box Turn over U 0 1 . 4 Which ion do all acids produce in aqueous solution? [1 mark] Tick () one box. H+ OH− O2− 0 1 . 5 The reaction between an acid and an alkali produces water. What is the name of this type of reaction? [1 mark] Tick () one box. Combustion Decomposition Neutralisation Question 1 continues on the next page 4 (04) G/Jun23/8465/3F Do not write outside the box 0 1 . 6 Sulfuric acid has the formula H2SO4 What is the total number of atoms in the formula H2SO4? [1 mark] Tick () one box. 3 6 7 10 0 1 . 7 0.5 dm3 of a solution of sulfuric acid contains 9.8 g of sulfuric acid. Calculate the concentration of the solution of sulfuric acid. Use the equation: concentration = mass of sulfuric acid volume of solution [2 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Concentration = _______________________ g/dm3 ____ 8 Turn over U 5 (05) G/Jun23/8465/3F Do not write outside the box Turn over for the next question DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED 6 (06) G/Jun23/8465/3F Do not write outside the box 0 2 Figure 1 shows how the National Grid connects a nuclear power station to houses. Figure 1 Nuclear power station Step-up transformer Step-down transformer Houses Transmission cables 0 2 . 1 What is one advantage of generating electricity using nuclear power? [1 mark] Tick () one box. Generating electricity using nuclear power is reliable. Generating electricity using nuclear power produces radioactive waste. Nuclear fuel is non-renewable. 7 (07) G/Jun23/8465/3F Do not write outside the box Turn over U The step-up transformer increases the efficiency of power transmission. 0 2 . 2 How does the step-up transformer affect the potential difference across the transmission cables? [1 mark] Tick () one box. The potential difference decreases. The potential difference stays the same. The potential difference increases. 0 2 . 3 How does the step-up transformer affect the current in the transmission cables? [1 mark] Tick () one box. The current decreases. The current stays the same. The current increases. 0 2 . 4 How does the step-up transformer affect the energy transferred from the transmission cables to the surroundings? [1 mark] Tick () one box. The energy transferred to the surroundings