YCKSS Prelim P2

Name: Index Number: Class: YIO CHU KANG SECONDARY SCHOOL O-LEVEL PRELIMINARY EXAMINATION 2024 SECONDARY FOUR EXPRESS PHYSICS 6091/02 Paper 2 1 hour 45 minutes 10 September 2024 (Tuesday) No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, index number and class on the cover page. Write in dark blue or black ink. You may use a soft pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Section A Answer all questions. Write your answers in the spaces provided. Section B Answer one question. Write your answers in the spaces provided. Candidates are reminded that all quantitative answers should include appropriate units. The use of an approved scientific calculator is expected, where appropriate. Candidates are advised to show all their working in a clear and orderly manner, as more marks are awarded for sound use of Physics than for correct answers. The number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s Use Section A / 70 Section B / 10 Total / 80 Parent’s / Guardian’s signature Setter: Mr Brandon Chin This document consists of 23 printed pages and 1 blank page.

2 4E O-LEVEL PRELIM EXAM 2024 6091/02 SECTION A Answer all questions in this section in the spaces provided. 1 Fig. 1.1 shows a bungee jumper falling from a bridge above a river. Fig. 1.1 The man starts from position A. The elastic cord starts to stretch at position C and he stops for the first time at position D. He continues to rise and fall. Fig. 1.2 shows how the velocity of the man varies with time t. Fig. 1.2 (a) State the difference between the positive velocity and negative velocity of the bungee jumper. ……………………………………………………………………………………………….…. ………………………………………………………………………………………………. [1] t/s 1 2 3 4 6 5 Position A Position B Position C Position D at the top cord starts to stretch at the lowest point

3 4E O-LEVEL PRELIM EXAM 2024 6091/02 1 (b) In the first 1.4 s, the acceleration is uniform. Using values from Fig. 1.2, determine the acceleration of the man in the first 1.4 s. acceleration = ………………………………… [2] (c) With reference to Fig. 1.2, state the time when the man is at position D. ………………………………………………………………………………………...…….. [1] (d) (i) State the two forces acting on the man at position D. ………………………………………………………………………………………... [1] (ii) Explain, in terms of the forces acting, why the man is accelerating upwards at position D. …………………………………………………………………………………………… …………………………………………………………………………………………… …………………………………………………………………………………………… ……………………………………………………………………………………….. [2]

4 4E O-LEVEL PRELIM EXAM