2023 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4F Foundation Tier Paper 4 Physical Sciences Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]

2023 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/4F Foundation Tier Paper 4 Physical Sciences Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] GCSE COMBINED SCIENCE: SYNERGY F Foundation Tier Paper 4 Physical Sciences Tuesday 13 June 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: ⚫ a ruler ⚫ a protractor ⚫ a scientific calculator ⚫ the periodic table (enclosed) the Physics Equations Sheet (enclosed). Instructions ⚫ 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 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 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. For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL (JUN2384654F01) 8465/4F G/LM/Jun23/E6 2 0 1The 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 Do not write outside the box (02) G/Jun23/8465/4F 3 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 Turn over U (03) Do not write outside the box G/Jun23/8465/4F 4 Figure 1 shows how the braking distance of two cars varies with speed. Figure 1 80 Key Braking 70 distance of car A 60 Braking distance of Braking 50 car B distance in metres 40 30 20 10 0 35 Speed of car in m/s 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. Do not write outside the box (04) G/Jun23/8465/4F 5 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 Turn over U (05) Do not write outside the box G/Jun23/8465/4F 0 1.6 0 1.7 _ (06) Do not write outside the box 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 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 G/Jun23/8465/4F 7 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] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Turn o