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Download 2024 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4H Paper 4 Question Paper + Mark Scheme + Ins and more Exams Physical Activity and Sport Sciences in PDF only on Docsity!
2024 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4H 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 Higher 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: a ruler a protractor 1 a scientific calculator the periodic table (enclosed) the Physics Equations Sheet (enclosed). Question Mark Instructions e Use black ink or black ball-point pen. Pencil should only be used for drawing. Fill in the boxes at the top of this page. Answer all 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 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 TOTAL to be marked. e Inall calculations, show clearly how you work out your answer. @/N}|oalal}alwlrn 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. WME pepe Do not write outside the box There are no questions printed on this page DO NOT WRITE /ON THIS PAGE ANSWER IN THE/SPACES PROVIDED IML G/Jun24/8465/4H 2 Do not write outside the box [0 [1 ]-[2] The two iron rods repel each other when there is a magnetic field around the coil. Explain why. [2 marks] -[3] The two iron rods are replaced with copper rods. The two copper rods remain stationary when there is a magnetic field around the coil. Give one reason why. [1 mark] IML G/Jun24/8465/4H 4 Power supply Do not write outside the box The student made an electromagnet by: e wrapping a coil of wire around an iron bar e connecting the coil of wire to a power supply. The student investigated how the current in the electromagnet affected the strength of the electromagnet. Figure 2 shows the electromagnet. Figure 2 Current Magnetic pole A 8.10 yo 43a oo QL Magnetic pole B I 1 [0 [1]-[4] Identify magnetic poles A and B in Figure 2. [1 mark] Magnetic pole A Magnetic pole B Question 1 continues on the next page Turn over > AMM G/Jun24/8465/4H 5 Do not write outside the box -[5] The power supply is switched off. Why is the newtonmeter reading 2.0 N? [1 mark] Tick (“) one box. The weight of the electromagnet is 2.0 N. The weight of the iron disc is 2.0 N. The weight of the newtonmeter is 2.0 N. [0 [1 ].[6] The student switched the power supply on and then increased the current in the electromagnet. The iron disc was not touching the electromagnet, but the reading on the newtonmeter changed. Explain why. [3 marks] Question 1 continues on the next page Turn over > IML G/Jun24/8465/4H 7 Do not write outside the [7] The student recorded the readings on the newtonmeter as the current increased. Figure 4 shows the results. Figure 4 45 4.0 3.5 3.0 Newtonmeter reading in newtons 2.5 2.0 p= 1.5 1.0 0.0 1.0 2.0 3.0 4.0 Current in amps 08 G/Jun24/8465/4H 8 10 Do not write outside the A student investigated the reactivity of four metals with sulfuric acid. Figure 5 shows the apparatus. Figure 5 > *}— Hydrogen : ° ° yy Sulfuric acid e YY Y FY Magnesium Iron Copper Zinc [0] 2]-[1] Give two variables the student should control. [2 marks] 1 2 G/Jun24/8465/4H 10 11 Do not write outside the box -[2] Write the order of reactivity from least reactive to most reactive for the four metals. Use Figure 5. [1 mark] Least reactive Most reactive [0 |2].[3] The gas produced in Figure 5 is hydrogen. Describe the test for hydrogen gas. Give the result if hydrogen is present. [2 marks] Test Result Question 2 continues on the next page Turn over > IMI G/Jun24/8465/4H 11 13 Do not write outside the box A thermistor is an electrical component. -[1.] What is the circuit symbol for a thermistor? [1 mark] Tick (¥) one box. aa oe Question 3 continues on the next page Turn over > IM G/Jun24/8465/4H 13 14 Do not write outside the ‘box A student investigated how the resistance of a thermistor varies with temperature. Figure 7 shows the results. Figure 7 1200 1000 800 Resistance inQ 600 400 200 0 10 20 30 40 50 60 70 Temperature in °C -[2] Suggest why the student was not able to take measurements at temperatures below 20 °C. [1 mark] G/dun24/8465/4H 14 16 Do not write outside the Figure 7 is repeated below. box Figure 7 1200 1000 800 Resistance inQ 600 400 200 0 10 20 30 40 50 60 70 Temperature in °C 16 G/Jun24/8465/4H 16 17 Do not write outside the Use the Physics Equations Sheet to answer Questions 03.4 and 03.5. Pox [0 | 3]-[4] Write down the equation which links current (Z), potential difference (V) and resistance (R). [1 mark] -[5] The potential difference across the thermistor was 6.0 V. Determine the current in the thermistor when the temperature of the thermistor was 40 °C. Use Figure 7. [4 marks] Current = A 13 Turn over for the next question Turn over > G/Jun24/8465/4H 17 19 Do not write outside the box [0 [4].[2] Describe how the motion of the skydiver changed between 0 and 12 seconds. [2 marks] [0] 4].[3| Explain why the resultant force on the skydiver changed as the skydiver fell. [4 marks] Question 4 continues on the next page Turn over > G/Jun24/8465/4H 19 20 | Do not write outside the box -[4] Which of the velocity-time graphs shows how the velocity of the skydiver changed after the parachute was opened? [1 mark] Tick (“) one box. Velocity 0 Time Velocity 0 Time Velocity 0 Time Velocity aw 0 Time 9 IMU G/Jun24/8465/4H 20 
