2024 PRSS P1 P2 QP + MS

Name Class Register Number SECONDARY 4 EXPRESS PRELIMINARY EXAMINATION 2024 PHYSICS Paper 1 Multiple Choice Tuesday 0800 – 0900 6091/01 27 August 2024 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write your name, class and register number on all the work you hand in. Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid or tape. There are forty questions in 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. The use of an approved scientific calculator is expected, where appropriate. 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. This document consists of 19 printed pages, including this cover page. Setter : Mdm Siti Mariam [Turn over Pasir Ris Secondary School

2 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 1 A student measures, as accurately as possible, the length and internal diameter of a straight glass tube. The length of the glass tube is approximately 25 cm and the internal diameter is approximately 2 cm. What is the best combination of instruments for the student to use? internal diameter length A digital calipers digital micrometer screw gauge B digital calipers ruler C ruler digital micrometer screw gauge D ruler ruler 2 Each row contains a vector and a scalar. In which row is the size of the vector always equal to the size of the scalar? vector scalar A displacement of a car distance travelled by the car B speed of a car velocity of the car C velocity of a car speed of the car D weight of a car mass of the car 3 The diagram shows two forces, P and Q, drawn to scale. Which diagram represents the resultant of forces P and Q? A B C D P Q

3 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 4 A parachutist falls from a stationary balloon at time t = 0 s. The velocity-time graph for the parachutist from time t = 0 s until the time when he is just above the ground is shown. Which graph best shows the variation with time of the acceleration of the parachutist? A B C D

4 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 5 The velocity-time graph of an object being thrown up vertically into the air is shown. Which information about the motion of the object is incorrect? A The acceleration of the object at time T is zero. B The displacement of the object at time 2T is zero. C The object is momentarily at rest at time T. D The only force acting on the object during its motion is gravitational force. 6 The gravitational field strength on Earth is 9.8 N/ kg. The gravitational field strength on Mars is 3.7 N/ kg. The difference between the weight of an object on Earth and the weight of the same object on Mars is 25 N. What is the mass of the object? A 1.9 kg B 2.6 kg C 4.1 kg D 6.8 kg 7 A stone has a mass of 390 g and a density of 2.7 g/cm3. Cooking oil has a density of 0.90 g/cm3. Which mass of cooking oil has the same volume as the stone? A 130 g B 160 g C 900 g D 1200 g velocity time

5 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 8 The front wheel of a car is turned in a anticlockwise direction by the engine as the car accelerates towards the left, as shown in the diagram. There is a force of friction between the wheel and the road. What are the directions of the frictional forces on the wheel of the car and on the road? direction of frictional force on wheel direction of frictional force on road A to the left to the left B to the left to the right C to the right to the left D to the right to the right 9 A car of mass 1500 kg is towing a trailer of mass 1100 kg along a level road. The acceleration of the car is 1.30 m/s2. Ignoring friction and air resistance, what is the driving force on the car? A 520 N B 1430 N C 1950 N D 3380 N 10 A beam of length 40 cm is pivoted at one end. The weight of the beam is 4.0 N and acts at a point 20 cm from the pivot. A 2.0 N weight hangs 10 cm from the pivot. An upward force U is needed to keep the beam horizontal. What is the size of U? A 0.5 N B 1.5 N C 2.5 N D 6.0 N left right wheel road

6 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 11 A type of firework is made by connecting two rockets, facing in opposite directions, to a rod, as shown. The rod is attached to a frictionless pivot so that the firework can rotate in a vertical plane. The firework has weight W. The pivot exerts a force R on the rod that is equal and opposite to W. Each rocket exerts a force of magnitude F on the rod at a perpendicular distance d from the pivot. The forces exerted by the rockets are always in opposite directions. Air resistance is negligible. Which statement is correct? A The firework is in equilibrium because the resultant force acting on it is zero. B The firework is in equilibrium because the resultant moment acting on it is zero. C The firework is not in equilibrium because the resultant force acting on it is not zero. D The firework is not in equilibrium because the resultant moment acting on it is not zero. 12 The diagram shows a manometer containing mercury that is sealed at one end. What happens to the height h when the manometer is taken to the top of a mountain? A It decreases, because atmospheric pressure decreases. B It decreases, because atmospheric pressure increases. C It increases, because atmospheric pressure decreases. D It increases, because atmospheric pressure increases. vacuum h

7 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 13 Which graph shows the total external pressure acting on a submarine at different depths below the surface of the sea? 14 A builder holding a brick of mass 3000 g drops the brick on his foot. What is a reasonable estimate of the change in the gravitational potential store of the brick? A 30 J B 300 J C 3000 J D 30 000 J A B C D

8 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 15 A large stone is rolled onto a lorry using a ramp. The length of the ramp is l. The stone is lifted a height of h. The mass of the stone is m. The weight of the stone is W. Which expression is equal to the useful work done on the stone? A m x h B W x h C m x l D W x l 16 The diagram shows a burning candle. Which energy store is associated with the burning candle? A chemical B elastic C electrostatic D nuclear 17 An insulated beaker contains 300 g of water, initially at 30 °C. Water at 100 °C is added until the temperature of the mixture reaches 50 °C. The specific heat capacity of water is 4.2 J/(g°C). How much water is added? A 60 g B 120 g C 180 g D 750 g

9 PRSS_2024_S4E_PRELIM_PHYSICS_6091_P1 18 A piston is supported by gas trapped in a cylinder. A weight is put on the piston. The volume of gas supporting the piston decreases but the temperature of the gas is unchanged.