NYGH-2023-S4-EOY-Physics-P2

Class Register Number Name End-of-Year Examination 2023 Secondary 4 PHYSICS Paper 2 Theory 1 hour 45 minutes Monday 9 Oct 0845 – 1030 No Additional Materials are required. READ THESE INSTRUCTIONS FIRST 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. Do not use staples, paper clips, glue or correction tape/fluid. Write your answers in the spaces provided on the question paper. Section A (40 marks) Answer all questions. Section B (30 marks) Answer all questions. Question 13 has a choice of parts to answer: 13 Either or 13 Or. Circle Question 13 Either or 13 Or in the grid on the right to indicate which question you have answered. 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 n o 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 to be 10 m s -2 or gravitational field strength to be 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 Either 13 Or Total Paper 1 (30 marks) Overall 100 This document consists of 22 printed pages. Setters: AJL & LSH NANYANG GIRLS' HIGH SCHOOL [Turn over

2 Section A (40 marks) Answer all questions in this section. 1 A boy standing on a building throws a stone vertically upwards. Fig. 1.1 shows the variation of the velocity of the stone with time t. The stone leaves the boy’s hand at t = 0 s and reaches the ground at the bottom of the building at t = 2.8 s. Fig 1.1 (a) (i) Distinguish between velocity and speed. ……………………………………………………………………………………..………… ………………………………………………………………………………………..…... [ 1] (ii) Calculate the change in velocity of the stone between t = 0 s and t = 2.8 s. change in velocity = …………………….. [1] (iii) Calculate the change in speed of the stone between t = 0 s and t = 2.8 s. change in speed = …………………….. [1] -10.0 -5.0 0.0 5.0 10.0 15.0 20.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 velocity / m s−1 t / s

3 [Turn over (b) The displacement of the stone is 0 m at t = 0 s. Taking this as the reference position, (i) calculate the displacement of the stone at its maximum height, displacement = …………………….. [ 1] (ii) calculate the displacement of the stone when it reaches the ground. displacement = …………………….. [ 2] (iii) Hence, on the axes in Fig. 1.2, sketch the variation