HYSS PLM_PHYSICS 6091 4G3 P2 [QP]

[Turn Over HUA YI SECONDARY SCHOOL PRELIMINARY EXAM 2024 4-G3 NAME CLASS INDEX NUMBER PHYSICS 6091/02 PAPER 2 (XX) 21 August 2024 1 hour 45 minutes Additional Materials: Nil READ THESE INSTRUCTIONS FIRST Write your Name, Class, and Index Number 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, highlighters, 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. Section A 70 Section B 10 Total 80 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. This document consists of 21 printed pages and 1 blank page. © HYSS 2024 No part of this document may be reproduced in any form or transmitted in any form or by any means without the prior permission of Hua Yi Secondary School. Setter: Mrs Lim Kai Xin

2 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 2 Section A [70 marks] Answer all the questions in the spaces provided. 1 Fig. 1.1 shows a child sliding down a slope on a snow sledge. Fig.1.1 At time t = 0, the child and the sledge begin to move down the hill. When the child sees a wall ahead, he applies the brake and eventually comes to a stop. Fig. 1.2 is the velocity time graph for the journey. Fig.1.2 velocity m/s time / s sledge child brake wall

3 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 2 (a) Explain, using ideas about forces, why the speed varies in the way shown in Fig. 1.2 between t = 0 and t = 26 s. …………..................................................................................................................... …………..................................................................................................................... …………..................................................................................................................... …………..................................................................................................................... …………..................................................................................................................... [2] (b) Explain how the graph shows that the child and the sledge reach terminal velocity. ……………………………………………………………………………………………….. ……………………………………………………………………………………………….. [1] (c) At t = 26 s, the front of the sledge is 35 m from the wall. Determine if the child is able to come to a stop