YSS 2024 4E Phy Prelim P1 with MS

[Turn over YISHUN SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 SECONDARY 4 EXPRESS CANDIDATE NAME CLASS INDEX NUMBER PHYSICS 6091/01 Paper 1 Multiple Choice 20 August 2024 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, 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 or 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.

2 This document consists of 20 bn printed pages. 1 A list of physical quantities is shown. displacement of the school gate from the canteen mass of your textbook speed of a moving bullet room temperature resistance of a wire How many of these quantities are derived quantities? A 1 B 2 C 3 D 4 2 The time taken for a pendulum to swing from the lowest position P to its maximum displacement Q is 0.85 s. What is the time taken for the pendulum to make 1.5 oscillations? A 0.85 s B 1.70 s C 3.40 s D 5.10 s Q P

3 [Turn over 3 Which pair of measuring instruments are the most suitable to measure the external diameter and circumference of a test tube? A digital micrometer screw gauge and digital calipers B digital micrometer screw gauge and 15.0 cm rule C digital calipers and tape measure D digital micrometer screw gauge and tape measure 4 An F1 car moves on the horizontal Singapore GP racing track. If the speed of the car remains constant, which statement is true? A The acceleration of the car is always zero. B The velocity of the car is always constant. C In one complete round starting from the checkered flag, the displacement of the car from the checkered flag is zero. D The distance covered by the car in one second when it is going round a bend is lower than the distance covered by the car in one second when it is travelling on a straight portion of the track. checkered flag racing track

4 5 Four measurements are carried out in the school laboratory. Which measurement will have the same value if it is carried out in a space laboratory? A inertia of the object B period of a pendulum C pressure exerted by a mass on the bench D gain of energy in the potential store when an object is raised by 1.0 m 6 A mass of 5.0 kg is pulled by a spring balance along a surface. The mass moves at a constant speed of 8.0 m/s when the reading of the spring balance is 50 N. What is the initial deceleration of the mass when the spring suddenly snaps? A 0 m/s2 B 5.0 m/s2 C 8.0 m/s2 D 10.0 m/s2 7 The diagram below shows two solid cylinders made of two different materials. One cylinder has a diameter x while the other has diameter 2x. The height of both cylinders is the same. If the weight of the larger cylinder is twice that of the smaller cylinder, what is the ratio of the density of the larger cylinder to that of the smaller one? A 0.5 2x W W x 2W

5 [Turn over B 1.0 C 2.0 D 4.0 8 The diagram below shows a balancing toy pivoted on a stand. If the toy is tilted slightly, it remains at the same tilted position when the force is removed. Which point A, B, C or D is the most likely position of the centre of gravity of the toy? 9 The diagram, not drawn to scale, shows a uniform metre rule of mass 500 g balanced at its centre of gravity. A load of 2.0 N is hung at the 20 cm mark. At which position must a load of 5.0 N be hung in order to maintain equilibrium? A 42 cm mark B 58 cm mark C 62 cm mark D 88 cm mark weight weight pivot stand A D C B 0 cm 20 cm 50 cm 100 cm 2.0 N

6 10 An electric motor is used to lift a 12 kg box. The box is raised to a height of 20 m in 1 minute. The motor has an efficiency of 40 %. What is the electrical power supplied to the motor? A 600 W B 100 W C 40 W D 10 W 11 The diagram shows four containers. If all the containers are completely filled with water, which statement about the pressure exerted by the water on the base of the containers is correct? A The pressure is highest in container P and Q. B The pressure is highest in container R. C The pressure is highest in container S. D The pressure is the same in all containers. P Q R S

7 [Turn over 12 The diagram shows a simple mercury barometer at atmospheric pressure. Which point shown in the diagram is at a higher pressure than atmospheric pressure? 13 The diagram shows a ray of light incident on a plane mirror. The angle the ray of light makes with the mirror is 40°. What is the angle the ray of light is deviated (changed) due to the reflection in the mirror? A 40° B 50° C 80° D 100° 76 cm A B C D 40

8 14 The diagram shows a patient having her eyes tested. A chart is placed behind her and she sees it reflected in a plane mirror. How far is the image of the chart from the patient? A 8.0 m B 7.0 m C 5.0 m D 3.0 m mirror patient chart 2.0 m 3.0 m

9 [Turn over 15 The diagrams A, B, C and D show rays of light travelling from air through glass. Which diagram shows a path which is not possible? A B C D

10 16 The diagram shows a ray of light travelling from air through a glass block and into water on the other side of the glass block. What is the refractive index of the glass? A sin z sin w B sin w sin x C sin x sin y D sin y sin x w x z y air glass water