AQA GCSE COMBINED SCIENCE: TRILOGY 8464/P/1H Higher Tier Physics Paper 1H Question Paper + Mark scheme [MERGED] June 2022 *jun228464p1h01* IB/M/Jun22/E13 8464/P/1H For Examiner’s Use Question Mark

AQA GCSE COMBINED SCIENCE: TRILOGY 8464/P/1H Higher Tier Physics Paper 1H Question Paper + Mark scheme [MERGED] June 2022 *junp1h01* IB/M/Jun22/E13 8464/P/1H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the Physics Equations Sheet (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • 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. • In all calculations, show clearly how you work out your answer. Information • The maximum mark for this paper is 70. • The marks for questions are shown in brackets. • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in your answers. Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. GCSE COMBINED SCIENCE: TRILOGY Higher Tier Physics Paper 1H H 2 *02* IB/M/Jun22/8464/P/1H 0 1 Figure 1 shows some of the energy resources used to meet the demand for electrical power in the UK on one day in 2020. Figure 1 Do not write outside the box 3 *03* Turn over ► IB/M/Jun22/8464/P/1H Do not write outside the 0 1 box . 1 The maximum demand for electrical power on that day was at 6 pm. Determine the percentage of the maximum demand for electrical power that was generated using gas. [3 marks] Percentage = % 0 1 . 2 The UK government wants to reduce carbon emissions as much as possible. Which energy resources need to be used less to achieve this? [1 mark] Tick () one box. Coal and gas Gas and nuclear Wind and coal Wind and nuclear Question 1 continues on the next page 4 *04* IB/M/Jun22/8464/P/1H Do not write outside the box 8 A network of transformers and transmission cables transfers electrical power from power stations to consumers. 0 1 . 3 What is this network called? [1 mark] 0 1 . 4 Explain how using step-up transformers makes the network efficient. [3 marks] 5 *05* Turn over ► IB/M/Jun22/8464/P/1H Do not write outside the Turn over for the next question box DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED 6 *06* IB/M/Jun22/8464/P/1H Do not write outside the box 0 2 A student made measurements to determine the specific heat capacity of vegetable oil. Figure 2 shows the equipment used. Figure 2 0 2 . 1 Describe how the student could use the equipment shown in Figure 2 to determine the specific heat capacity of vegetable oil. [6 marks] 7 *07* Turn over ► IB/M/Jun22/8464/P/1H Do not write outside the box 0 2 . 2 Give one risk when using the equipment in Figure 2. [1 mark] A different student did not have a joulemeter and calculated the energy transferred by the electric heater. Use the Physics Equations Sheet to answer questions 02.3 and 02.4. 0 2 . 3 Write down the equation linking energy transferred (E), power (P) and time (t). [1 mark] 0 2 . 4 The electric heater had a power output of 50 watts. Calculate the time taken for the electric element to transfer 4750 joules of energy to the vegetable oil. [3 marks] Time taken = s Question 2 continues on the next page 8 *08* IB/M/Jun22/8464/P/1H Do not write outside the box In a deep fryer, vegetable oil is heated by an electric heating element. Food is then cooked in the hot vegetable oil. The deep fryer contains an electrical component to monitor the temperature of the vegetable oil. Figure 3 shows how the resistance of this electrical component changes with temperature. Figure 3 0 2 . 5 What electrical component is used to monitor the temperature of the vegetable oil? [1 mark] 9 *09* Turn over ► IB/M/Jun22/8464/P/1H Do not write outside the 0 2 box . 6 The electric heating element in the deep fryer automatically switches off when the vegetable oil reaches a certain temperature. Figure 4 shows how the temperature of the vegetable oil changed after the deep fryer was switched on. Figure 4 Determine the resistance of the electrical component when the electric heating element automatically switched off. Use Figure 3 and Figure 4. [2 marks] Resistance = Ω Question 2 continues on the next page 10 *10* IB/M/Jun22/8464/P/1H Do not write outside the box 15 0 2 . 7 Some chips were put in the deep fryer. In the deep fryer, water in the chips underwent a physical change and became steam. Why is this a physical change? [1 mark] Tick () one box. All water can change to steam. No chemicals are involved when water changes to steam. The change from water to steam can be detected visually. The water will recover its original properties if the