Temasek 2024 Prelim 4E Phy P1 QP Final

No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. TEMASEK SECONDARY SCHOOL Preliminary Examination 2024 Secondary 4 Express PHYSICS 6091/01 Paper 1 Multiple Choice 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Do not open the booklet until you are told to do so. You are not required to hand in this booklet at the end of the paper. Write your name, index number and class in all the work you hand in. Write in soft pencil. There are forty questions on this section. 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. Take gravitational field strength as 10 N/kg. This document consists of 15 printed pages and 1 blank page.

2 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. Answer all the questions (40 Marks) 1 Length, mass, power, time and temperature are considered physical quantities. How many base quantities can be found in the sentence above? A 2 B 3 C 4 D 5 2 Which pair of units can be used for the same physical quantity? A km/h and m/s2 B kg/m3 and Pa C Nm and kgm/s D J/s and W 3 What is the correct order of magnitude for the size of a typical atom? A 10-15 m B 10-12 m C 10-10 m D 10-7 m 4 The period of an oscillating pendulum is 0.50 s. What is the time taken for the pendulum bob to travel from A, the extreme position of the bob, to B, its rest position? A 0.125 s B 0.25 s C 0.50 s D 2.0 s A B

3 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. 5 Grace moves from S to Y in the sequence as illustrated in the diagram. She took 5.0 s for the whole journey. What is the magnitude of her average velocity from S to Y? A 0.6 m/s B 1.6 m/s C 2.4 m/s D 8.0 m/s 6 A stone is thrown vertically upwards. Assuming resistive forces are negligible, w hich of the following displacement-time graphs shows the motion described above? A B C D displacement time displacement time displacement time displacement time

4 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. 7 Which object has the greatest inertia? A A 10 kg object at rest. B A 7 kg object moving at 5 m/s. C A 8 kg object decelerating at 2 m/s2 from a initial speed of 30 m/s. D A 2 kg object accelerating at 0.5 m/s2 from rest. 8 Two objects have the same size and shape but one is heavier than the other. They are both dropped from rest from the same height. Which statement is true when comparing the motion of the two objects? A The heavier object has higher initial acceleration and higher terminal velocity. B The heavier object has lower initial acceleration but the same terminal velocity as the lighter object. C Both objects have the same initial acceleration and the same terminal velocity. D Both objects have the same initial acceleration but the heavier object has higher terminal velocity. 9 The weight of a hot -air balloon is 4000 N. The hot -air balloon rises at a constant speed of 2.0 m/s. What is the magnitude of the resultant force acting on the hot-air balloon? A 0 N B 2000 N C 4000 N D 8000 N 10 Two blocks are connected by a light string S as shown in the figure below. Under the action of a constant force, F, they move with a uniform acceleration of 3.0 m/s2. What will the acceleration of the block of mass 4 kg be if string S suddenly breaks? A 4.0 m/s2 B 4.5 m/s2 C 5.0 m/s2 D 6.0 m/s2 Smooth table

5 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. 11 A cyclist riding a unicycle is cycling up an inclined plane as shown in the figure below. In which direction is the friction acting on the wheel of the unicycle? 12 The figure below shows a figurine toy which is not very stable and topples over easily. Which of the following will not increase its stability? A Adding a heavy hat on the head of the toy. B Increasing the size of the foot of the toy. C Increasing the mass of the toy’s pants. D Sticking weights to the bottom of the foot. 13 Two cubes, X and Y, are made up of the same material. Cube X has sides of 3 cm and cube Y has sides of 6 cm. Cube Y has a mass of 216 g. What is the density of cube X? A 1 kg/m3 B 8 kg/m3 C 1000 kg/m3 D 8000 kg/m3 X Y

6 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. 14 A manometer is attached to a gas cylinder as shown below. What is the pressure difference, in cm of water, shown by the manometer? A 26 B 29 C 50 D 55 15 Liquids usually expand more than solids when heated through the same rise in temperature. Which of the following best explains the situation? A Liquid particles are bigger than solid particles. B Liquid particles expand more than solid particles. C Liquid particles move faster than solid particles. D The forces between liquid particles are weaker than those between solid particles. 16 When water is changing into steam at its boiling point, which of the following is/are happening? (i) energy is absorbed to raise the temperature (ii) internal energy is increased (iii) energy is supplied to break the intermolecular bonds between water molecules at liquid state A (i) only B (i) and (ii) only C (ii) and (iii) only D (i), (ii) and (iii)

7 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. 17 When a human climbs out of a warm swimming pool on a hot summer day, he feels cold. Why does this happen? A The cold in the air is transferred to the human. B The water droplets are at a higher temperature as compared to his body temperature. C Energy is transferred from the human to the water when it evaporates. D The air is a better thermal conductor than water. 18 The diagram below shows a wave on a string with points W, X, Y and Z marked on the string. The wave is moving in the direction shown. Which two points are moving in the same direction? A W and X B W and Y C X and Y D Y and Z 19 The diagram shows water waves moving from deep to shallow water. Which of the following statements is true during the process? A The distance between crests will increase. B The frequency of the wave will remain the same. C The period of the wave will decrease. D The speed of the wave will increase. wavefront deep water shallow water

8 No part of the paper is to be reproduced without the approval of the Principal of Temasek Secondary School. 20 The diagram shows the crests of circular water wavefronts radiating from a point source, P. The point source is then set to vibrate with a gradually decreasing frequency. Which diagram shows the new resulting wavefronts if the speed of the wave remains the same?