HYSS PLM_PHYSICS 6091 4G3 P1 [QP]

[Turn Over HUA YI SECONDARY SCHOOL PRELIMINARY EXAM 2024 4-G3 NAME CLASS INDEX NUMBER PHYSICS 6091/01 PAPER 1 (XX) 22 August 2024 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue, or correction fluid. Write your Name, Class, and Index Number on the Answer Sheet in the spaces provided. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. The use of an approved scientific calculator is expected, where appropriate. Paper 1 40 This document consists of 14 printed pages. © 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: Mr Tan PE

2 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 1 A strand of hair is 10-4 m thick. How many times larger is this thickness as compared with the average diameter of an atom? A 103 B 104 C 105 D 106 2 Which of the following shows zero resultant force when forces F 1, F 2 and F 3 are added? A B C D 3 The motion of an object in a straight line over 10 s is shown by the velocity -time graph. Which statement about the motion of the object is not correct? A The object has positive acceleration. B The object has zero average velocity. C The object is constantly in motion. D The object returns to its start point. v / ms-1 t / s

3 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 4 Which statement describes speed and velocity correctly? A Speed and velocity are vector and scalar quantities respectively. B Speed and velocity are base and derived quantites respectively. C Speed may not change when velocity changes. D Speed always changes when velocity changes. 5 A force is applied to an object of mass 3 kg and it accelerates at 0.5 m/s 2 from rest on a smooth surface. When the same force is applied on the same object on a rough surface, the acceleration is reduced to 0.2 m/s2. What is the deceleration if the force is removed from the object when it is moving on the rough surface? A 0.17 m/s2 B 0.27 m/s2 C 0.30 m/s2 D 0.50 m/s2 6 The diagram shows how weight varies with mass on planets P and Q. An object weighs 400 N on planet P. The object is then taken to planet Q. Which of the following is correct? A The density of the object is higher on planet Q. B The gravitational field strength on planet P is lower than that on planet