CHIJ 4E Phy Prelim Paper 1 2024

CONVENT OF THE HOLY INFANT JESUS SECONDARY Preliminary Examination in preparation for the General Certificate of Education Ordinary Level 2024 CANDIDATE NAME CLASS REGISTER NUMBER PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet (OMR) 6091/01 28 August 2024 1 hour READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and register number on the Answer Sheet in the spaces provided unless this has been done for you. 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 This document consists of 18 printed pages and 2 blank pages. [Turn over O

2 CHIJSec/2024/OLevelPrelim/6091/01 1 A textbook lists the radius of a deuterium atom as 1.1 x 10-10 m and the distance travelled by light in one year as 9.5 x 1015 m. How are these values expressed with prefixes? radius of a deuterium atom distance travelled by light in one year A B C D 1.1 x 10-1 nm 1.1 x 10-1 nm 1.1 x 10-1 µm 1.1 x 10-1 µm 9.5 x 103 Tm 9500 Gm 9500 Gm 9.5 x 103 Tm 2 What is the unit of power expressed in base units? A kgm2 / s2 B kgm2 / s C kg2m2 / s2 D kgm2 /s3 3 A pendulum swings backwards and forwards passing through Y, the middle point of the oscillation. The first time the pendulum passes through Y, a stopwatch is started. The twenty-first time the pendulum passes through Y, the stopwatch is stopped. The reading is T. What is the period of the pendulum? A T/40 B T/21 C T/20 D T/10

3 [Turn over CHIJSec/2024/OLevelPrelim/6091/01 4 A robot standing on a cliff shoots a ball upwards with an initial speed of 20 m/s. What is the height of the cliff given that the ball reaches the bottom of the cliff 10 s after the shoot? (Take g = 10 m/s2 and the height of the robot to be negligible) A 275 m B 300 m C 320 m D 375 m 5 A car driver takes a total of two hours to make a journey of 75 km. During the journey, the car was stationary as it was caught in a traffic jam for some time. She travels at an average speed of 60 km/h during the rest of the time. How long was the car caught in the traffic jam if she wants to complete the journey in two hours? A 0.5 hour B 0.75 hour C 1 hour D 1.25 hours 6 An experiment is carried out by an astronaut on the surface of the Moon. A coin and a feather are dropped at the same instant from the same height. Which statement is correct? A The coin falls faster than the feather, but both take a longer time than if they were falling from the same height on Earth. B The coin falls faster than the feather, but both take a shorter time than if they were falling from the same height on Earth. C They fall together, taking a longer time than the coin would in falling from the same height on Earth. D They fall together, taking a shorter time than the coin would in falling from the same height on Earth.

4 CHIJSec/2024/OLevelPrelim/6091/01 2 m 3 m 1 m 2 m 30 N m 10 N m 15 N m P 7 An L-shaped rigid lever arm is pivoted at point P . Three forces act on the lever arm, as shown in the diagram. What is the magnitude of the resultant moment of these forces about point P? A 40 Nm B 50 Nm C 60 Nm D 70 Nm

5 [Turn over CHIJSec/2024/OLevelPrelim/6091/01 Fapp/ N t/ s 0 2 3 5 4 8 8 The graph below shows the applied force acting on a 1 kg block of wood which is initially moving at 6 ms-1on a table. If the table has a friction of 2 N, what is the velocity-time graph of the wood? A B C D v / ms-1 t / s 0 6 14 20 2 3 5 v / ms-1 t / s 0 6 8 10 20 2 3 5 v / ms-1 t / s 0 6 8 10 20 2 3 5 v / ms-1 t / s 0 6 10 14 2 3 5

6 CHIJSec/2024/OLevelPrelim/6091/01 9 A girl uses paper clips to balance a toy bird on her finger, as shown. What is the effect of the paper clips? A They help to raise the centre of gravity above her finger. B They help to raise the centre of gravity to her finger. C They help to lower the centre of gravity below her finger. D They do not affect the centre of gravity but increase the weight. 10 A car of mass 800 kg is being driven along a level road. The engine supplies a forward force of 3600 N and there is a resistive force opposing motion. If the car is accelerating at 2.5 m/s2, what is the resistive force? A 1200 N B 1600 N C 2000 N D 2500 N 3600 N resistive force toy bird paper clips

7 [Turn over CHIJSec/2024/OLevelPrelim/6091/01 11 A box of mass 2 kg slides down from the top of the ramp from rest. Given that the friction along the ramp is 3.2 N, what is the speed of the box when it reaches the foot of the ramp? Take g as 10 N/kg. A 2.8 m/s B 4.5 m/s C 8.0 m/s D 8.9 m/s 12 The diagram shows a hydraulic press with two pistons. A downward force of 4 N is exerted on piston L. What will be the upward force exerted by the liquid on piston K? A 1 N B 4 N C 80 N D 1600 N 4 N 4 m 3 m 2 kg

8 CHIJSec/2024/OLevelPrelim/6091/01 13 A water manometer is connected to a gas supply. The diagram shows the water levels. The water is replaced by mercury, which is denser than water. Which diagram shows the mercury levels when the manometer is connected to the same gas supply? 14 A fixed mass of gas is heated in a cylinder with a movable piston. The piston is pushed outward by the gas to maintain a constant pressure in the piston. Which row about the gas particles is correct? frequency of collision with the inner wall of cylinder average speed A B C D decrease decrease increase increase no change increase increase no change

9 [Turn over CHIJSec/2024/OLevelPrelim/6091/01 15 A thin tube contains a thread of mercury which traps air at the end of the tube. The other end of the tube is open to the atmosphere. When the tube is turned upside down, the volume of the trapped air increases. Which statement explains this? A The air gets hotter when the tube is turned upside down. B The atmosphere pushes less when it acts upwards on the mercury. C The pressure in the trapped air is reduced. D The trapped air molecules hit the mercury harder when travelling downwards. 16 The diagram shows the cross-sectional view of a vacuum flask containing hot water. Which statement about the silvered surfaces is correct? A The inner silvered surface is a poor absorber of radiation. B The inner silvered surface is a poor emitter of radiation. C The outer silvered surface is a good absorber of radiation. D The outer silvered surface is a good emitter of radiation. inner silvered surface outer silvered surface vacuum hot water

10 CHIJSec/2024/OLevelPrelim/6091/01 displacement / m distance / cm displacement / m time / ms 17 The displacement-distance and displacement-time graphs for a wave are as shown. What is the speed of the wave? A 1 cm/s B 100 cm/s C 500 cm/s D 1000 cm/s 18 The diagram shows a wave on a string with two points P and Q marked. The wave is movin