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Download . 2024 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4F Paper 4 Question Paper + Mark Scheme + I and more Exams Physical Activity and Sport Sciences in PDF only on Docsity!
2024 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4F Paper 4 Question Paper + Mark Scheme + Inserts AQA Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 4 Physical Sciences | declare this is my own work. Tuesday 11 June 2024 Morning Time allowed: 1 hour 45 minutes Materials For Examiner’s Use For this paper you must have: e aruler Question Mark e aprotractor 1 e ascientific calculator 2 e the periodic table (enclosed) e the Physics Equations Sheet (enclosed). 3 Instructions 4 e Use black ink or black ball-point pen. 5 e Pencil should only be used for drawing. 6 e Fill in the boxes at the top of this page. e Answer all questions in the spaces provided. Do not write outside the box z around each page or on blank pages. 8 e If you need extra space for your answer(s), use the lined pages at the end of 9 this book. Write the question number against your answer(s). e Do all rough work in this book. Cross through any work you do not want 10 to be marked. TOTAL e Inall calculations, show clearly how you work out your answer. Information e The maximum mark for this paper is 100. 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. G/LIM/Jun24/G4001/E6 8465/4F 5 4 FO1 Do not write outside the box Figure 1 shows a floating hot air balloon attached to the ground by a rope. The hot air balloon is stationary. Figure 1 Hot air balloon Rope [0 [1]-[4] The wind is exerting a force on the hot air balloon in Figure 1. Which arrow shows the direction of the force of the wind in Figure 1? [1 mark] Tick (“) one box. IML GiJun24/8465/4F 2 [0 [1 ]-[4] The mass of the hot air balloon is 350 kg. IML Calculate the weight of the hot air balloon. gravitational field strength = 9.8 N/kg Use the equation: weight = mass ~ gravitational field strength [2 marks] Weight = GiJun24/8465/4F Do not write outside the box Do not write outside the box [0 [1 ]-[5] The hot air balloon exerts a force of 200 N on the rope. The force causes the rope to stretch by 1.60 m. The rope behaves like a spring. Calculate the spring constant of the rope. Use the equation: spring constant = _ force _, Pring extension Choose the unit from the box. m N miN N/m [3 marks] Spring constant = Unit 8 Turn over for the next question Turn over > AMM GiJun24/8465/4F 5 Do not write outside the box [0 [2].[2] The potential difference across the motor is 20 V. What is the potential difference across the heating element? Give a reason for your answer. [2 marks] Tick (“) one box. 20V 50 V 210 V 230 V Reason [0 [2]-[3] The hairdryer transfers 460 000 J of energy in 250 seconds. Calculate the power of the hairdryer. Use the equation: energy transferred power time [2 marks] Power = Ww Question 2 continues on the next page Turn over > IML GiJun24/8465/4F 7 {o[2).[5] Do not write outside the [0 [2].[4] The current in the hairdryer is 8.0 A. Calculate the time taken for 1200 C of charge to flow past a point in the hairdryer circuit. Use the equation: im = Sage [2 marks] Time = s The hairdryer is connected to the mains electricity supply. What is the frequency of the UK mains electricity supply? [1 mark] Tick (“) one box. 50 Hz 60 Hz 100 Hz 230 Hz 9 AMM GiJun24/8465/4F 8 10 Hydrogen reacts with nitrogen to produce ammonia. Figure 3 represents a molecule of ammonia. Figure 3 H—N—H H [0 [3]-[4] What is represented by — in Figure 3? [1 mark] -[5] What is the formula of ammonia? Use Figure 3. [1 mark] GiJun24/8465/4F Do not write outside the box 10 11 Do not write outside the Ammonia reacts with hydrogen chloride to produce ammonium chloride. box The reaction is reversible. [0 [3]-[6] Write the word equation for the reaction. Include the symbol for a reversible reaction. [2 marks] + [7] Which condition needs to be changed so that the direction of the reaction is reversed? [1 mark] 8 Turn over for the next question Turn over > IMI GiJun24/8465/4F 11 13 Do not write outside the box [0 [4 ].[2] What happened to the speed of the skydiver between 8 seconds and 12 seconds? Use Figure 4. [1 mark] Tick (“) one box. The speed decreased The speed stayed the same The speed increased [0 [4].[3] Determine the mean speed of the skydiver between 0 seconds and 12 seconds. Use Figure 4 and the equation: total distance mean speed = “total time [3 marks] Mean speed = m/s Question 4 continues on the next page Turn over > IM GiJun24/8465/4F 13 [o[4}.[4] {o[4}.[5] 14 Do not write outside the box The forces acting on the skydiver during the fall were weight and air resistance. What happened to the weight of the skydiver during the fall? [1 mark] Tick (Vv) one box. Weight decreased Weight stayed the same Weight increased What happened to the air resistance acting on the skydiver as the speed of the skydiver increased? [1 mark] Tick (Vv) one box. Air resistance decreased Air resistance stayed the same Air resistance increased GiJun24/8465/4F 14 16 i The skydiver decelerated when the parachute opened. IMI The initial resultant force on the skydiver was 960 N. The mass of the skydiver was 64 kg. Calculate the initial deceleration of the skydiver. Use the equation: . resultant force deceleration = ~~ mass Choose the unit from the box. mis m/s2 sim? [3 marks] Deceleration = Unit Do not write outside the box GiJun24/8465/4F 16 17 Do not write outside the box Turn over for the next question DO NOT WRITE/ON THIS PAGE ANSWER IN THE/SPACES PROVIDED Turn over > GiJun24/8465/4F 17 19 Do not write outside the box [o[5]-[3] Name a piece of equipment that gives a more accurate pH value than an indicator. [1 mark] [0 |5].[4] The word equation for the reaction is: calcium carbonate + hydrochloric acid — calcium chloride + water + carbon dioxide Why is fizzing seen during the reaction? [1 mark] . [5] Give one safety precaution the student should have taken. [1 mark] [0 | 5].[6] What is the pH of a neutral solution? [1 mark] Tick (“) one box. 1 4 7 10 Question 5 continues on the next page Turn over > IMI 9 GiJun24/8465/4F 19 20 Do not write outside the [7] A student reacted hydrochloric acid with excess calcium carbonate. A solution of calcium chloride was produced. Figure 5 shows the method used to produce calcium chloride crystals from the reaction mixture. Figure 5 Step 1 Step 2 Calcium chloride solution YY Excess calcium carbonate > eA A Heat Describe the method shown in Figure 5 to produce calcium chloride crystals from the reaction mixture. Include the equipment used. [4 marks] 11 IMU GiJun24/8465/4F 20 
