AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4F Foundation Tier Paper 4 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/4F (JUN2384654F01) GCSE QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023

GCSE COMBINED SCIENCE: SYNERGY 8465/4F Foundation Tier Paper 4 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/4F (JUN2384654F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 4 Physical Sciences Tuesday 13 June 2023 Morning 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/Jun23/8465/4F Do not write outside the box 0 1 The stopping distance of a vehicle depends on the thinking distance and the braking distance. 0 1 . 1 What is meant by ‘thinking distance’? [1 mark] Tick () one box. The distance travelled before a vehicle stops. The distance travelled while the driver reacts. The time taken for a driver to react. The time taken for the vehicle to stop. 0 1 . 2 What would increase the braking distance of a vehicle? [1 mark] Tick () one box. Ice on the road surface Sunny weather Using a mobile phone while driving 3 (03) G/Jun23/8465/4F Do not write outside the box Turn over U 0 1 . 3 What is the name of the force which causes the vehicle to decelerate when the brakes are applied? [1 mark] Tick () one box. Friction Upthrust Weight Question 1 continues on the next page 4 (04) G/Jun23/8465/4F Do not write outside the box Figure 1 shows how the braking distance of two cars varies with speed. Figure 1 0 20 40 60 80 10 30 50 70 15 Speed of car in m/s Braking distance in metres Key Braking distance of car A 35 Braking distance of car B 0 1 . 4 How does the braking distance of the two cars vary with speed? [1 mark] Tick () one box. The braking distance decreases as speed increases. The braking distance is not affected by speed. The braking distance increases as speed increases. 5 (05) G/Jun23/8465/4F Do not write outside the box Turn over U To make a fair comparison between the braking distance of the two cars, the mass of each car was the same. 0 1 . 5 Calculate the weight of a car. mass = 850 kg gravitational field strength = 9.8 N/kg [3 marks] Use the equation: weight = mass × gravitational field strength Choose the unit from the box. kilograms metres newtons ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Weight = ___________________________ Unit ___________________________ Question 1 continues on the next page 6 (06) G/Jun23/8465/4F Do not write outside the box 0 1 . 6 Which two variables should be kept the same to make a fair comparison of the braking distance of the two cars? [2 marks] Tick () two boxes. The age of the driver The caffeine intake of the driver The colour of the car The number of people in the car The type of road surface 0 1 . 7 The mass of each car was 850 kg. At one speed the deceleration of one of the cars was 10.7 m/s2. Calculate the mean braking force on the car. Use the equation: mean braking force = mass × deceleration [2 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Mean braking force = ___________________________ N 7 (07) G/Jun23/8465/4F Do not write outside the box Turn over U 0 1 . 8 Table 1 shows the braking force on each car at a speed of 31 m/s. Table 1 Car Braking force in N A 5450 B 8880 The braking distance of car A was longer than the braking distance of car B at a speed of 31 m/s. Explain why. Use data from Table 1. [2 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ____ 13 Turn over for the next question 8 (08) G/Jun23/8465/4F Do not write outside the box 0 2 This question is about Group 7 elements. Figure 2 shows some Group 7 elements in the periodic table. Figure 2 F fluorine 9 19 Cl chlorine 17 35.5 Br bromine 35 80 I iodine 53 127 0 2 . 1 What is the name of the Group 7 elements? [1 mark] Tick () one box. Alkali metals Halogens Noble gases 0 2 . 2 Which element in Figure 2 has the highest melting point? [1 mark] ___________________________________________________________________________________ 9 (09) G/Jun23/8465/4F Do not write outside the box Turn over U 0 2 . 3 A fluorine atom has 9 electrons. What is the electronic structure of a fluorine atom? [1 mark] Tick () one box. 2,3,4 2,7 4,3,2 7,2 0 2 . 4 What type of structure does chlorin