2023 S3 EOY P1 2023 S3 EOY P1 2023 S3 EOY P1 1 / 30 2023 S3 EOY P1 Q01 Which pair of units both measure the same physical quantity? N/m2 and Pa kg/m3 and g/cm2 m/s2 and km/h J and W 2 / 30 2023 S3 EOY P1 Q02 What is the order of magnitude for the diameter of a strand of human hair? 1 μm 10 000 μm 0.01 μm 100 μm 3 / 30 2023 S3 EOY P1 Q03 A student holds a sheet of paper with letters on it facing a plane mirror. The letters on the paper are as shown. What does the student see in the mirror? 4 / 30 2023 S3 EOY P1 Q04 Two students stand in front a mirror as shown. When student A looks into the mirror, how far away would the image of student B appear to him? 2.0 m 6.0 m 4.0 m 5.0 m 5 / 30 2023 S3 EOY P1 Q05 A 1.6 m tall lady stands in front of a 0.70 m mirror. She notices that she is unable to see her full reflection from where she is standing. What can she do to see her full reflection? She can switch to a longer mirror. She can move further from the mirror. She can adjust the position of the mirror to be higher. She can move nearer to the mirror. 6 / 30 2023 S3 EOY P1 Q06 In the diagram shown, a ray strikes a smooth surface at an angle of 25° to the surface and is reflected. What is its angle of deviation? 50º 130º 25º 65º 7 / 30 2023 S3 EOY P1 Q07 A ray of light strikes the surface of a glass block at an angle of incidence of 45°. The refractive index of the glass is 1.5. What is the angle of refraction inside the glass block? 67º 45º 30º 28º 8 / 30 2023 S3 EOY P1 Q08 A scientist conducts an experiment to find the critical angle at the boundary between two mediums. The scientist uses three mediums of refractive indices 1.0, 1.2 and 1.6. Which is not a possible critical angle? 49º 56º 39º 51º 9 / 30 2023 S3 EOY P1 Q09 Which of the following does not affect the focal length of a convex lens? (i) Refractive index of the lens material (ii) Object distance (iii) Thickness of the lens (i) and (ii) only (iii) only (ii) and (iii) only (ii) only 10 / 30 2023 S3 EOY P1 Q10 An object O and its image I are shown. Which is the correct position of the converging lens? A D B C 11 / 30 2023 S3 EOY P1 Q11 The diagram below shows the ray diagram of a thin lens. State the type of lens used and the type of image formed. A D C B 12 / 30 2023 S3 EOY P1 Q12 A photocopier uses a converging lens to focus images for printing on paper. If the focal length of the lens is 5.0 cm, what must be the distance of the original paper from the lens to make full-size copies? 5.0 cm 2.5 cm 7.5 cm 10.0 cm 13 / 30 2023 S3 EOY P1 Q13 A student uses a ticker-timer to investigate the movement of a trolley to the right. Every second, the ticker-timer puts 50 dots on the paper tape. The tape looks like this. What duration of time corresponds to the distance between X and Y on the tape? 0.11 s 0.22 s 0.20 s 0.10 s 14 / 30 2023 S3 EOY P1 Q14 A person walks West from point X to point Y, and then walks South from point Y to point Z. What is the displacement of this person for the entire journey? 5.0 m, 53º North of East 7.0 m, 53º South of West 5.0 m, 53º South of West 7.0 m, 53º North of East 15 / 30 2023 S3 EOY P1 Q15 A train travels along a straight horizontal track. Take right as positive. At time t = 20 s, its velocity is –10 ms–1 and acceleration is –2.0 ms–2. How is the train moving at time t = 20 s? travelling to the left with decreasing speed travelling to the left with increasing speed travelling to the right with increasing speed travelling to the right with decreasing speed 16 / 30 2023 S3 EOY P1 Q16 A small ball is thrown vertically upwards. It moves to a highest point before falling. What are the velocity and acceleration of this ball at the highest point? C B D A 17 / 30 2023 S3 EOY P1 Q17 Students 1 and 2 are at the same position at time t = 0 s. They move along the same straight horizontal track. The speed-time graph of their motion is shown below. Which statement about their motion is correct? At time t = t1, both students have the same acceleration. At time t = t1, both students meet. After time t = t1, separation between student 1 and student 2 decreases until they meet. After time t = t1, acceleration of student 2 becomes negative. 18 / 30 2023 S3 EOY P1 Q18 The velocity-time graph of an object is shown below. Which is the corresponding displacement-time graph for this object? B D A C 19 / 30 2023 S3 EOY P1 Q19 A man standing upright inside a stationary bus is facing the front of the bus. The bus suddenly accelerates forward. Which statement is true? He leans backward, due to his tendency to remain stationary. He leans forward, due to his tendency to continue to move at constant velocity. He leans forward, due to his tendency to remain stationary. He leans backward, due to his tendency to continue to move at constant velocity. 20 / 30 2023 S3 EOY P1 Q20 An object of mass 4.2 kg weighs 16.0 N on an unknown planet. What is the gravitational field strength on that planet? 0.26 N kg–1 67 N kg–1 16 N kg–1 3.8 N kg–1 21 / 30 2023 S3 EOY P1 Q21 A buoy of mass 2.0 kg rises in water with a uniform speed of 1.5 m s–1. What is the resultant force exerted on this buoy as it rises? 30 N 50 N 20 N 0 N 22 / 30 2023 S3 EOY P1 Q22 A block of mass 3.0 kg is pulled across a rough surface by a 27 N force, against a friction force f. The acceleration of the block is 4.0 m s–2. What is the value of the friction force f? 6.8 N 15 N 12 N 27 N 23 / 30 2023 S3 EOY P1 Q23 The diagram below shows two masses, M1 and M2, attached to the ends of a light, inextensible string hung over a frictionless pulley. M1 has a mass of 3.0 kg and M2 has a mass of 5.0 kg. What is the acceleration of mass M2 once the system is released from rest? 6.3 m s–2 2.5 m s–2 4.0 m s–2 10 m s–2 24 / 30 2023 S3 EOY P1 Q24 Three identical uniform boxes of length 1.00 m are stacked as shown. By sliding only box 2 and box 3 separately towards the right, what is the maximum possible horizontal distance between side X and side Y before any box topples? 1.50 m 1.25 m 2.00 m 1.75 m 25 / 30 2023 S3 EOY P1 Q25 A signboard of a cafe is suspended using hinges P and Q as shown. Which diagram shows the correct directions of the horizontal forces acting on the signboard by the two hinges? B D A C 26 / 30 2023 S3 EOY P1 Q26 A girl of weight 600 N runs up a flight of stairs in 12 s. The vertical height of the flight of stairs is 3.0 m. What is the average power developed by the girl? 150 W 21 600 W 0.0067 W 1 800 W 27 / 30 2023 S3 EOY P1 Q27 27 A ball of mass 3.0 kg is dropped from rest from a height of 6.0 m above the floor. Assume that air resistance is negligible. What is the speed of the ball at 2.0 m above the floor as it is falling down? 120 m s–1 11 m s–1 8.9 m s–1 80 m s–1 28 / 30 2023 S3 EOY P1 Q28 A car has a mass of 1500 kg. The car has four tyres, and each tyre has a contact area of 100 cm² with the road surface. What is the pressure exerted by the car on the road? 150 Pa 37.5 Pa 375 kPa 150 kPa 29 / 30 2023 S3 EOY P1 Q29 Four different liquids are poured into identical measuring cylinders. The diagrams show the depths of the liquids and their densities. Which diagram shows the liquid exerting the largest pressure on the base of its measuring cylinder? C A D B 30 / 30 2023 S3 EOY P1 Q30 A water manometer is connected to a gas supply. The diagram shows the water levels. The water is then replaced by mercury which is denser than water. Which diagram shows the mercury levels when the manometer is connected the same gas supply? C A D B Your score is