NYGH-2023-S4-EOY-Physics-P1

Class Register Number Name End-of-Year Examination 2023 Secondary 4 PHYSICS Paper 1 Multiple Choice 45 minutes Monday 9 October 1200 – 1245 No Additional Materials are required READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction tape/fluid. Write your name, register number and class on the Question Paper and on the Answer Sheet in the spaces provided unless this has been done for you. There are thirty 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 in the spaces provided 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 the acceleration due to gravity g (or gravitational field strength) to be 10 m s-2 (or 10 N kg-1) near the Earth’s surface. This document consists of 14 printed pages. Setters: AJL & LSH NANYANG GIRLS' HIGH SCHOOL [Turn over

2 1 A pair of vernier calipers is used to measure the width of a wooden block. Diagram 1 shows the scale when nothing is clamped between its jaws, while diagram 2 shows the scale when the wooden block is clamped between the jaws. Diagram 1 Diagram 2 What is the width of the wooden block? A 3.04 cm B 3.10 cm C 3.74 cm D 3.80 cm 2 Which cannot be the magnitude of the resultant force when a force of 3 N and a force of 8 N act on an object? A 3 N B 5 N C 8 N D 10 N 3 A stone undergoes free fall from rest to the ground. The stone travels 0.25 of the total distance to the ground in the first 1.0 s of its fall. What is the total time taken for the stone to fall to the ground? A 1.4 s B 2.0 s C 3.0 s D 4.0 s 4 The diagram shows the speed-time graph for a sky diver. He falls from an aircraft, then opens a parachute and later lands safely on the ground. At which point did the skydiver open the parachute? 3 4 cm 0 1 cm 0 10 5 0 10 5 speed time A B C D 0

3 [Turn over 5 The diagram shows a pendulum hanging from a string suspended inside a train. The train is travelling to the right. Which row describes the motion of the train when angle θ is constant? speed magnitude of acceleration A increasing increasing B increasing constant C decreasing increasing D decreasing constant 6 A man pushes a box along a rough floor with a force F as shown in the diagram. The box moves with constant velocity. Which force forms an action-reaction pair with F? A frictional force by the floor on the box B frictional force by the floor on the man C normal contact force by the floor on the box D normal contact force by the box on the man 7 The diagram shows a non-uniform object suspended freely from a pin at A. When the object is pushed, it swings and then comes to a stop at the position shown. Which labelled point could be the centre of mass of the object? direction of motion of train pendulum θ box F rough floor A card suspended from here C D B

4 8 A motor in a crane is used to lift a load of mass 900 kg through a height of 5.0 m from rest to a speed of 2.0 m s−1. What is the work done by the motor in lifting the load? A 1.8 kJ B 18 kJ C 45 kJ D 47 kJ 9 The diagram shows a container made of tin and containing only air. It is connected to an air pump through a tube. Air is pumped out of the container and it collapses when the pressure of the air inside falls to 2.0 × 104 Pa. Atmospheric pressure is 1.0 × 10 5 Pa and the surface area of face X of the container is 0.060 m2. What is the resultant force on face X when the container just collapses? A 1.2 × 103 N B 4.8 × 103 N C 3.3 × 105 N D 1.3 × 106 N 10 The diagram show s a mercury barometer that contains some trapped air. The atmospheric pressure is 74 cm Hg. What is the pressure of the trapped air? A 2 cm Hg B 8 cm Hg C 10 cm Hg D 12 cm Hg connected to air pump container tube trapped air mercury 80 60 20 40 cm ruler

5 [Turn over 11 In the diagram below, the angle of incidence of a light ray on a horizontal plane mirror is 30o. What is the angle of reflection if the mirror is rotated anti-clockwise through an angle of 20o? A 10 B 20 C 30 D 50 12 A girl with her eyes 1.50 m above the ground stands in front of a 2.50 m high wall, as shown in the diagram (not drawn to scale). If a small mirror is to be hung on the wall, which position should it be placed so that the girl can see the small lamp behind her? A 1.50 m above the ground B 1.63 m above the ground C 1.75 m above the ground D 1.83 m above the ground 3.00 m 1.50 m 1.50 m 2.50 m wall small lamp

6 13 Which diagram correctly shows the path of the light ray when it enters a right-angled triangular glass block? A B C D

7 [Turn over 14 The diagram shows an object and a lens positioned to form a well-focused, inverted image on a screen. A piece of cardboard is then lowered just in front of the lens to cover the top half of the lens. What will happen to the image on the screen? A The upper half of the image will disappear. B The lower half of the image will disappear. C The image will become fuzzy and out of focus. D The image will become dimmer. 15 When electromagnetic waves travel from one medium to another, which properties of the waves will change? A frequency only B speed only C speed and wavelength only D frequency, speed and wavelength 16 A wave moves across the surface of water in a ripple tank. In 4.0 minutes, a wavefront moves a distance of 100 wavelengths. What is the frequency of the wave? A 0.040 Hz B 0.42 Hz C 25 Hz D 400 Hz screen lens object cardboard to be lowered

8 17 A man stands facing a wall. He claps his hands and hears the echo after 2.50 s. If the speed of sound is 340 m s1, what is the distance between the man and the wall? A 425 m B 625 m C 850 m D 1250 m 18 The diagram shows the displacement-time graphs of different musical notes played on a flute. Which musical note, A, B, C or D, has the lowest pitch? a man claps his hands wall displacement / m time / s A D B C

9 [Turn over 19 Two charged spheres X and Y are hanging from two nylon threads of the same length attached to a point on a ceiling. They remain at rest as shown in the diagram. Which statement(s) below must be correct? (1) Both spheres carry positive charges. (2) The force acting on Y by X is larger than the force acting on X by Y. (3) The mass of X is larger than Y. A (1) only B (3) only C (1) and (2) only D (2) and (3) only 20 The diagrams show the range and symbols of four ammeters. A B C D Which ammeter should be used to measure a current of 0.5 A? X Y

10 21 A student sets up the following circuit and makes measurements to plot a resistance- temperature graph of the metal wire as shown below. When the ammeter reading is 1.0 A, the temperature of the metal wire is 25 C. What is the reading of the ammeter when the temperature of the metal wire is 200 C? A 0.36 A B 0.42 A C 0.60 A D 1.5 A 0 5 10 15 0