PLMGS 2026 Physics P1 QP + MS

CENTRE NUMBER S INDEX NUMBER Physics 6091/01 Paper 1 (Multiple Choice) 31 Aug 2026 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write your name, class and index number on the front cover. Do not use staples, paper clips, glue or correction fluid. There are forty questions in this paper. Answer all questions. For each question, four possible answers (A, B, C, and D) are given. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. The use of an approved scientific calculator is expected, where appropriate. This document consists of 18 printed pages. CANDIDATE NAME ( ) CLASS TG Paya Lebar Methodist Girls’ School (Secondary) Preliminary Examination 2026 Secondary 4 Express Secondary 4 Express / G3 [Turn over

2 1 Which pair of units measure the same quantity? A km/h and kg/m3 B N/m3 and Pa C V and J/C D W and J 2 What is the approximate mass of an apple? A 2.0 x 103 mg B 2.0 x 107 ng C 2.0 x 10-4 Mg D 8.0 kg 3 Which of the following statements must be correct? A An object has zero acceleration when it moves at a constant speed. B An object can have a constant velocity even though its speed is changing. C An object cannot come to rest momentarily if it is moving with a constant acceleration. D An object moving with changing velocity can have a constant acceleration. 4 The velocity – time graph of a body is shown below. A student makes four statements about the motion of the body. 1. The body is accelerating in the negative direction. 2. The body is decelerating. 3. The acceleration of the body is decreasing. 4. The speed of the body is increasing. Which statements are correct? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4 v m/s

3 5 A student stands near the edge of a cliff. He throws the ball upwards. What is the acceleration of the ball when it is at the highest point of its free fall motion and during its descent? at the highest point of motion as the ball moves downwards A 10 m/s2 downwards constant B less than 10 m/s2 downwards increases C 0 constant D 0 increases 6 A rocket of mass 1000 kg is descending downwards upon the surface of the Moon where the gravitational field strength is 1.67 N/kg. If the deceleration of the rocket is 5.0 m/s2, what is the upward force exerted by the rocket engine? A 2500 N B 6670 N C 7500 N D 10 000 N [Turn over

4 7 The front wheel of a car is turned in a clockwise direction by the engine as the car moves towards the right. There is a force of friction between the front wheel and the road. What is the direction of the frictional forces on the front wheel of the car? frictional force on the front wheel A to the left B clockwise C to the right D anti-clockwise 8 A coin falls from rest through the air and eventually reaches a constant speed. There is a resultant force acting on the coin due to the two forces P and Q shown in the diagram. What happens to force P and what happens to the resultant force before the coin reaches constant speed? force P resultant force A decreases increases B decreases decreases C increases increases D increases decreases

5 9 A parachutist opens his parachute and falls to Earth at constant speed. What is the principal energy transfer taking place as he falls? A kinetic store to gravitational potential store of energy B kinetic store to internal store of energy C gravitational potential store to kinetic store of energy D gravitational potential store to internal store of energy 10 A ball of mass 0.40 kg rolls down a hill. At 2.0 m above the bottom of the hill, the speed of the ball is 3.0 m/s. The gravitational field strength, g is 10 NI kg. What is the kinetic energy of the ball at the bottom of the hill given that the work done to overcome friction is 1.2 J? A 1.8 J B 8.0 J C 8.6 J D 9.8 J 11 The diagram shows the rest position of a balancing toy near the edge of a table. Which position is most likely to be the center of gravity of the toy? [Turn over

6 12 A uniform plank of length 1.0 m is supported by two spring balances J and K. The readings of J and K are both 150 N. When J is moved 0.25 m towards K, what are the new readings shown on J and K? reading on J reading on K A 200 N 100 N B 200 N 150 N C 150 N 200 N D 100 N 200 N 13 An underwater diver moves from the ocean to a fresh water lake. The density of water in the lake is less than in the ocean. In which position does the diver experience the smallest pressure due to the water?

7 14 The diagram shows a hydraulic pump. Which of the following comparisons is true? A The pressure on piston P is the same as the pressure on piston Q. B The pressure on piston P is smaller than the pressure on piston Q. C The force F is the same as the weight of the load. D The force F is greater than the weight of the load. 15 The input power to a motor is 300 W. In 20 s, it lifts a load through a height of 6.0 m at constant speed. The efficiency of the motor is 60%. What is the weight of the load? A 60 N B 600 N C 900 N D 1000 N 16 “When a substance is heated, the average kinetic energy of the particles in the substance remains constant. The particles begin to slide past each other.” What is the name of the process described above? A boiling B condensation C freezing D melting 17 A gas is in a sealed container of constant volume. The gas is heated and the pressure of the gas on the walls of the container increases. How do the particles of the gas cause this increase in pressure? A They expand. B They hit each other more frequently. C They hit the container more frequently. D They vibrate faster. [Turn over

8 18 Pot X and pot Y are both in a cool room. Pot X contains hot water below its boiling point. Pot Y is identical to pot X but contains water that is kept boiling by a hotplate underneath it. What happens to the energy of the particles in the water in pot X and pot Y? average internal kinetic energy of water in X average internal kinetic energy of water in Y A decreases increases B decreases stays the same C stays the same increases D stays the same stays the same 19 Fibre-glass coverings laid on the floor, walls and ceiling of a house can greatly reduce the rate of heat lost to the surroundings. Fibre-glass consists of a large amount of fine glass fibres. Which of the following statements is not a reason why glass fibres are chosen for thermal insulation? A glass fibres reduce emission of radiation B glass fibres reduce convection currents C glass fibres trap air D glass fibres increase surface area kitchen surface hotplate pot X pot Y fibre-glass coverings fine glass fibres

9 20 The graph shows the variation in temperature of two solid objects, P and Q, of equal masses when they are separately heated by identical heaters. Which of the following deductions is correct? A The melting point of P is lower than Q. B The specific heat capacity of P in the solid state is larger than that of Q. C The specific latent heat of fusion of P is larger than that of Q. D More energy is required to raise the temperature of P to boiling point than Q. 21 A 0.30 kW heater is used to heat a well -insulated 3.0 kg mass of copper for 5 minutes. The temperature rises by 75 oC. What