Compassvale 2024 Sec4Exp Prelim Phy P1

[Turn over COMPASSVALE SECONDARY SCHOOL Secondary Four Express / Five Normal (Academic) Preliminary Examination 2024 NAME CENTRE NUMBER S CLASS INDEX NUMBER PHYSICS 6091/01 Paper 1 Multiple Choice 23 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 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 optical mark 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 20 printed pages. Set by: Mr E Chng

2 1 The diagram shows the resultant R of a 3.0 N force and a 4.0 N force that act at a point P. The angle between the 3.0 N force and the 4.0 N force can be any value from 0° to 90°. Which value of R is not possible? A 4.0 N B 5.0 N C 6.0 N D 7.0 N 2 A small cylinder is rolled along a ruler and completes two revolutions. What is the circumference of the cylinder? A 4.4 cm B 4.6 cm C 8.8 cm D 10.2 cm 3 A train sets off from a station at time t = 0. The graph shows how the displacement between the train and the station varies with time. Which statement about the movement of the train between time t1 and t2 is correct? A Its speed is decreasing and it is moving away from the station. B Its speed is decreasing and it is moving towards the station. C Its speed is increasing and it is moving away from the station. D Its speed is increasing and it is moving towards the station. 3.0 N P R 4.0 N two revolutions mark on cylinder start finish 0 cm 1 2 3 4 5 6 7 8 9 10 11 time t t1 t2 0 0 displacement

3 [Turn over 4 Three locations P, Q and R are shown below. One object moves directly from P to R. In a shorter time, a second object moves from P to Q to R. Which statement about the journey taken by the two objects is correct? A They have the same average speed. B They have the same average velocity. C They have the same displacement. D They have the same distance. 5 A student drops a table-tennis ball in air. What happens to the velocity and to the acceleration of the ball during the first few seconds after it is released? velocity acceleration A decreases increases B decreases unchanged C increases decreases D increases unchanged P Q R

4 6 The rear wheel of a car is turned in a clockwise direction by the engine as the car accelerates to the right, as shown in the diagram. The front wheel of the car is dragged along as the car moves. What are the directions of the frictional forces acting on the front and rear wheels? direction of frictional force on front wheel direction of frictional force on rear wheel A to the right to the right B to the right to the left C to the left to the right D to the left to the left 7 A spacecraft moves from Earth towards the Moon. At a point in its journey, the weight of the spacecraft is zero. Which statement best explains why the weight of the spacecraft is zero? A The gravitational field of the Earth is negligible. B The gravitational field of the Earth is balanced by the gravitational field of the Moon. C The spacecraft is moving at constant speed. D The spacecraft is not moving. direction of acceleration road front wheel rear wheel turned by engine

5 [Turn over 8 The diagram shows a coin placed on a card above a cup. When the card is flicked to the side, the coin does not move with the card but instead drops down into the cup. Which statement explains this observation? A The coin experienced a reluctance to change its motion. B The coin experienced weightlessness at the moment of impact. C The cup exerted an attractive force on the coin. D The gravitational force acting on the coin was too great as compared to the flick. 9 Which chair is the least stable if the child moves? A B C D coin card cup

6 10 The diagram shows a mercury manometer. The tube is open to the atmosphere on the right-hand side. The left-hand side is connected to a container containing a gas at pressure P. The atmospheric pressure is 760 mmHg. What is the pressure of P? A 680 mmHg B 700 mmHg C 820 mmHg D 840 mmHg 11 A hydraulic press contains an incompressible liquid X. Piston P has an area of 2.0 cm2 and piston Q has an area of 30 cm2. A downward force of 60 N is exerted on piston P and moves piston P downwards through a distance of 15.0 cm. What is the upward force F exerted on piston Q, and the distance d moved by piston Q? F / N d / cm A 900 0.50 B 900 1.0 C 1800 0.50 D 1800 1.0 gas at pressure P 60 mm 80 mm 60 N 2.0 cm2 30 cm2 liquid X piston P piston Q F mercury

7 [Turn over 12 A student does some simple exercises using different blocks. In which exercise does she do the most amount of work? A B C D 13 The diagram shows a burning candle. What is the main energy transfer taking place? A chemical potential store to internal store B chemical potential store to light store C internal store to light store D light store to internal store 10 N lifting through 1 m 5 N lifting through 3 m 10 N pushed 1 m with a 4 N force 5 N pushed 2 m with a 8 N force

8 14 A gas is trapped inside a cylinder by a movable piston. The length of the gas column is 20 cm and the pressure inside the cylinder is p. The piston is pulled out and the length of the gas column is now 50 cm. The temperature of the gas does not change. Which statement correctly explains what happens to the pressure of the gas? A The pressure of the gas decreases as the particles collide less frequently with the walls of the container. B The pressure of the gas decreases as the particles move more slowly throughout the container. C The pressure of the gas increases as the particles collide more frequently with the walls of the container. D The pressure of the gas increases as the particles move more quickly throughout the container. 15 A fixed mass of gas is heated while kept at constant volume. How do the properties of the molecules of the gas change as it is heated? average speed frequency of collision average distance between molecules A decrease decrease unchanged B decrease decrease increase C increase increase unchanged D increase unchanged decrease 50 cm original position of piston 20 cm gas at initial pressure p

9 [Turn over 16 In an experiment where the Brownian motion of smoke particles in air is studied, it is observed that the heavier particles settle at the bottom of the glass cell relatively quickly while the much smaller particles remain suspended in air for long periods of time. This is because A random collisions with the air molecules keep the particles suspended. B the effect of air pressure on the smaller particles is greater. C the gravitational force acting on the small particles is negligible. D the sma