2025 TKGS Physics Prelim Paper 1

Tanjong Katong Girls’ School 1 Sec 4 Preliminary Examination 2025 TANJONG KATONG GIRLS’ SCHOOL PRELIMINARY EXAMINATION SECONDARY FOUR PHYSICS CANDIDATE NAME CLASS INDEX NUMBER PHYSICS 6091/01 Paper 1 Multiple Choice 25 August 2025 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Write your name, index number on the Answer Sheet. There are forty questions in 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.

Tanjong Katong Girls’ School 2 Sec 4 Preliminary Examination 2025 1 A list of 8 physical quantities is shown below: length time energy force speed weight mass acceleration How many of them are derived quantities? A 3 B 4 C 5 D 6 2 Which sound frequency is within the range that can be heard by a healthy human ear? A 12 mHz B 12 Hz C 12 kHz D 12 MHz 3 Which pair of physical quantities contains a vector and a scalar quantity? A area and displacement B distance and volume C temperature and pressure D weight and velocity 4 Which displacement-time graph represents a body whose velocity is decreasing? A B C D displacement displacement displacement displacement time time time time

Tanjong Katong Girls’ School 3 Sec 4 Preliminary Examination 2025 5 A spacecraft is launched vertically. The velocity-time graph of the motion of the spacecraft is shown in the diagram. What is the maximum height reached by the spacecraft? A 25 000 km B 50 000 km C 75 000 km D 100 000 km 6 A sledge of mass 12 kg is pulled along the surface of a frozen lake at a constant speed of 1.5 m/s by a horizontal force of 22 N. What is the frictional force acting on the sledge? A 0 N B 4 N C 18 N D 22 N 7 The diagram shows multiple forces acting on a square object along the diagonal. What is the possible magnitude of the resultant force acting on the object? A 1.0 N B 3.0 N C 5.0 N D 11.0 N force = 22 N speed = 1.5 m/s velocity / km/h time / h

Tanjong Katong Girls’ School 4 Sec 4 Preliminary Examination 2025 8 In a laboratory experiment, a feather falls from rest in an evacuated vertical tube of length L. The feather took a time of t to fall from the top to the bottom of the tube. The diagram shows the experiment setup and the velocity-time graph of the feather as it falls. How far will the feather have fallen from the top of the tube in 0.5t ? A 0.13 L B 0.25 L C 0.50 L D 0.75 L 9 A ball is dropped downwards, hits the floor and rebounds upward. The figure below shows the instance of the ball just before and right after it hits the floor. Which row shows the correct description of the acceleration just before and after the ball hits the floor? just before hitting the floor just after hitting the floor A acceleration is 10 m/s2 downwards acceleration is 10 m/s2 upwards B acceleration is 0 m/s2 downwards acceleration is 0 m/s2 upwards C acceleration is 0 m/s2 downwards acceleration is 0 m/s2 downwards D acceleration is 10 m/s2 downwards acceleration is 10 m/s2 downwards

Tanjong Katong Girls’ School 5 Sec 4 Preliminary Examination 2025 10 Ahmad hung a ball to the ceiling of his car using a thin thread. The figure shows the ball when the car is at rest. What is the position of the ball when his car starts moving to the right? A B C D 11 A toy is balanced and at rest when positioned as shown in the diagram on the edge of a table. The toy has a metal sphere attached to it. Where is the likely centre of gravity of the toy? table

Tanjong Katong Girls’ School 6 Sec 4 Preliminary Examination 2025 12 A uniform beam of 5.00 m has a weight of 140 N, is hung by two ropes at its ends. A wooden block of mass of 30.0 N is placed on the beam at 0.800 m from rope X. What is the tension in each rope? tension in rope X/ N tension in rope Y/ N A 4.8 25.2 B 25.2 4.8 C 74.8 95.2 D 95.2 74.8 13 A hydraulic press contains an incompressible liquid X. Piston A has an area of 2.0 cm 2 and piston B has an area of 30 cm2. A downward force of 60 N is exerted on piston A and moves piston A downwards through a distance of 15.0 cm. What is the upward force F exerted on piston B and the distance d moved by piston B? force F / N distance d / cm A 900 1.0 B 900 0.50 C 1800 1.0 D 1800 0.50 0.800 m 5.00 m X Y beam 30 N

Tanjong Katong Girls’ School 7 Sec 4 Preliminary Examination 2025 14 The pressure inside a gas cylinder is measured separately using two different mercury manometers as shown in Fig. P and Q. One of the manometers has an open end while the other has a sealed end. A barometer, as shown in Fig. R, is used to measure the atmospheric pressure at the location of the experiment. The diagrams are not drawn to scale. What is the height, h, of the mercury in Fig. Q? A 40 mm B 720 mm C 800 mm D 1000 mm 15 Two identical measuring cylinders containing different liquids are placed on a simple balance. They are balanced as shown. How does the density of P compare with the density of Q? A Density of P is half the density of Q. B Density of P is equal to the density of Q. C Density of P is twice the density of Q. D Density of P is four times the density of Q. vacuum 760 mm mercury sealed end Pgas to gas supply h Pgas Patm 200 mm to gas supply 240 mm manometer barometer Fig. P Fig. Q Fig. R manometer vacuum Liquid P Volume = 100 cm3 Liquid Q Volume = 50 cm3

Tanjong Katong Girls’ School 8 Sec 4 Preliminary Examination 2025 16 A catapult launches a 3.0 kg ball into a castle. The ball leaves the catapult at a height of 1.0 m and with a speed of 15 m/s. A target is placed 5.0 m at the top of the castle. What is the speed of the ball when it hits the target? Assume there is no air resistance. A 9.80 m/s B 11.1 m/s C 12.0 m/s D 13.0 m/s 17 Three blocks A, B, and C are each pushed by equal forces, F, across a smooth horizontal floor for a distance of 2.0 m. The mass of block A is greater than block B, and the mass of block B is greater than block C. Which block/s would have the greatest amount of energy in the kinetic store at the end of the 2.0 m push? A Block A B Block B C Block C D All blocks will have the same amount of energy in the kinetic store 2.0 m 2.0 m 2.0 m A F F F B C 1.0 m 5.0 m

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