NYGH-2022-S4-EOY-Physics-P2

Class Register Number Name End-of-Year Examination 2022 Secondary 4 PHYSICS Paper 2 Theory 1 hour 45 minutes Tuesday 11 October 1015 – 1200 No Additional Materials are required READ THESE INSTRUCTIONS FIRST Do not open this booklet until you are told to do so. Write your name, register number and class on all the work you hand in. Write in dark blue or black pen . You may use an HB pencil for any diagrams or graphs. Section A (40 marks) Answer all questions. Section B (30 marks) Answer all questions including questions 11, 12 and 13 Either or 13 Or. Circle question 13 E or 13 O in the grid on the right to indicate which question you have answered. INFORMATION FOR CANDIDATES You are reminded that all quantitative answers should include appropriate units. The use of an approved scientific calculator is expected, where appropriate. Show all your working in a clear and orderly manner, as more marks are awarded for sound use of Physics than for correct answers. You are advised to spend no longer than one hour on Section A and no longer than 45 minutes on Section B. The number of marks is given in brackets [ ] at the end of each question or part question. Take the acceleration due to gravity g (or gravitational field strength) to be 10 m s-2 (or 10 N kg-1) near the Earth’s surface. Examiner’s Use Paper 2 (70 marks) Section A 1 2 3 4 5 6 7 8 9 10 Section B 11 12 13 E 13 O Total Paper 1 (30 marks) Overall 100 This document consists of 19 printed pages and 1 blank page. Setters: GHP & AWL NANYANG GIRLS' HIGH SCHOOL [Turn over

2 Section A Answer all questions in this section. 1 A bob of mass 2.0 kg is suspended by a string at P. The bob is pulled to one side by a horizontal spring balance, as shown in Fig. 1.1. The string is now inclined at 40 ° from the vertical. Fig. 1.1 (a) On Fig. 1.1, draw and label the direction of the tension acting at point Q along the string PQ. [1] (b) In the space below, draw a scaled vector diagram to determine the magnitude of the tension in the string PQ. State the scale used. scale ………………………… tension = ………………………… [3] spring balance Q 2.0 kg P 40°

3 [Turn over 2 A uniform plank of length 2.00 m and mass 4.0 kg has markings at equal length intervals painted on it, as shown in Fig 2.1. The plank is supported by two trestles A and B, and a student of mass 52.0 kg stands on the plank. Fig. 2.1 (a) On Fig. 2.1, draw and label the weight of the plank. [1] (b) Calculate the force exerted by trestle B on the plank. force = ………………………… [2] (c) Calculate the force exerted by trestle A on the plank. force = ………………………… [1] A B 40 cm

4 3 A woman of mass 70 kg makes a bungee jump as shown in Fig. 3.1. She starts