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 Q. C The mass of the object on planet Q is 80 kg. D The weight of the object on planet Q is 200 N.

4 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 7 An object was spinning about its pivot point, P, due to a force F as shown. Which direction should a force, 2F, be applied to stop the spinning? 8 A non-uniform rod of unknown weight W is suspended by two strings as shown in the diagram. The tension in one of the strings is 5 N. What is the tension T in the other string? A 2.5 N B 5.0 N C 7.5 N D 12.5 N 10 cm 20 cm 10 cm 10 cm W T 5T

5 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 9 The diagram shows a solid cube of side x m located at y m below water surface of an open tank that is filled with water. The density of water is ρ and the atmospheric pressure is P. g is Earth’s gravitational field strength. What is the pressure experienced at the bottom of the box? A P + ρgy B P + ρg(y - x) C ρgx D ρg(y - x) 10 A U-shaped tube is filled with liquids X and Y. What is the density of liquid X, ρx as compared to liquid Y, ρy? A 0.2 ρy B 0.8 ρy C 1.25 ρy D 1.8 ρy 11 Which of the following illustrates energy transfer mechanically by a force acting over a distance? A A bungy jumper stretching a bungy as he jumps from the top of a tower. B A person hearing music in a concert. C A person resting and feeling the warm of the surroundings. D An ice hockey player sliding on ice at constant velocity. 12 Illuminated smoke particles, suspended in air, are seen to move randomly. Which of the following best describes cause of the movement of the smoke particles? A The smoke particles are bombarded continuously by the air molecules. B The smoke particles move due to bombardment by other smoke particles. C The smoke particles move due to convection currents. D The smoke particles move due to the energy gained from the illuminated light. X Y y x

6 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 13 Diagrams X, Y and Z show three different states of a pure substance. X Y Z Which statement correctly describes X, Y and/or Z? A X has the lowest temperature. B Y has lower average kinetic energy than Z. C Y is formed when heat is supplied to X. D Z is formed when heat is removed from Y. 14 The diagram shows the sectional view of a thermal flask. Which statement correctly describe s how thermal energy transferred is reduced through a thermal flask? parts conduction convection radiation A plastic stopper yes yes no B silvered glass walls no no yes C silvered glass walls yes no yes D vacuum space yes yes yes 15 Which statement is true about the internal energy changes during boiling and evaporation? boiling evaporation A no change no change B no change decrease C increase no change D increase decrease plastic stopper silvered glass walls vacuum space

7 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 16 A 200 g of solid at 100°C is placed into a container that contains 200 g of liquid at 20°C. The specific heat capacity of the liquid is 4 times larger than the specific heat capacity of the solid. Assuming that the container has negligible specific heat capacity and no heat is lost to the surrounding, what is the final temperature of the solid? A 36 °C B 40 °C C 80 °C D 84 °C 17 In which of the situations is having a low specific heat capacity an advantage? A fiber handle of a frying pan B glass wall of an oral thermometer C metal bottom of a frying pan D water in a hot water storage tank 18 A musical instrument produces two notes. The first note has a wavelength of 10 m, a period of 30 s and an amplitude of 5 cm. The second note has a higher pitch and is softer. Which is the wavelength and amplitude of the second note? wavelength / m amplitude / cm A 5 3 B 5 10 C 20 3 D 20 10 19 A ship that is stationary on the surface of the sea sends pulses of sound vertically downwards towards the seabed. Each pulse that reflects from the seabed is received 1.0 s after it is sent out. A whale swims under the boat and a pulse is received 0.60 s after it is sent out. The speed of sound in sea water is 1500 m/s. What is the distance of the whale above the seabed? A 300 m B 450 m C 600 m D 750 m 20 A wall made of a particular material is used to shield electromagnetic waves that have wavelengths longer than the wavelength of ultraviolet rays. Which electromagnetic wave will be able to pass through the material? A microwave B radio wave C visible light D X-ray

8 2024_4-G3_ PRELIMS_ PHYSICS _PAPER 1 21 Which row gives an example of a longitudinal wave and of a transverse wave? longitudinal wave transverse wave A light ultrasound B microwaves radio waves C radio waves microwaves D ultrasound light 22 Y and Z are el