CGS 2025 Physics P1 QP

This paper consists of 18 printed pages including this cover page. Class: Index No.: Name: CRESCENT GIRLS’ SCHOOL SECONDARY FOUR PRELIMINARY EXAMINATION PHYSICS 6091 / 01 Paper 1 Multiple Choice 02 September 2025 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write your name, index number and class in the spaces provided at the top of this page and on the optical answer sheet. Do not use staples, paper clips, highlighters, glue or correction fluid. There are forty 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 on the optical 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.

2 6091/01/CGS/2025 1 What is the volume of air in a typical classroom in Crescent Girl’s School? A 8 × 100 m3 B 8 × 101 m3 C 8 × 102 m3 D 8 × 103 m3 2 Which set of quantities are all scalars? A displacement, force, work done B distance, pressure, kinetic energy C speed, weight, chemical energy D velocity, gravitational field strength, moment 3 A car travels from town A to town B with an average speed of 45 km h-1. It then travels from town B to town A along the same road with an average speed of 65 km h-1. What is the average speed of the car for the entire journey? A 0 km h-1 B 20 km h-1 C 53 km h-1 D 55 km h-1 4 A moon buggy used by astronauts has a weight of 2100 N on the Earth. The gravitational field strength on the Moon is 1 6 of that on the Earth. What is the weight of the moon buggy on the Moon? A 210 N B 350 N C 2100 N D 12600 N

3 6091/01/CGS/2025 5 An object falls without air resistance. Its position at equal time intervals is shown by a sequence of dots. Which sequence of dots is correct?

4 6091/01/CGS/2025 6 An object slides down a rough slope as shown. In which direction does the surface exert a force on the object? 7 The diagram shows a uniform solid block on a road next to a kerb that is 15 cm high. The block is 40 cm high, 20 cm thick and 30 cm long and has a mass of 6.0 kg. Determine the minimum force, F, required to tilt the block onto the kerb. A 3.0 N B 15 N C 24 N D 30 N 8 A man uses clay to make a pot. He wants the pot to be as stable as possible when placed on a flat surface. Which two features of the pot must the man consider? A the area of the base and the height of the centre of gravity B the density of the clay and the area of the base C the density of the clay and the height of the centre of gravity D the weight and the height of the centre of gravity

5 6091/01/CGS/2025 9 Two identical thin tubes, M and N, contain mercury as shown. One end is opened to the atmosphere and the other end has trapped air inside. It is observed that x is shorter than y in length. Which statement is the correct explanation? A Atmospheric pressure on the mercury is larger in M than that in N. B Atmospheric pressure on the mercury is smaller in M than that in N. C Pressure of trapped air in M is larger than that in N. D Pressure of trapped air in M is smaller than that in N. 10 The diagrams show liquids in containers. Which column of liquid exerts the greatest pressure on the base of its container?

6 6091/01/CGS/2025 11 The diagram shows two identical vessels X and Y connected by a very short pipe with a tap. Initially, X is filled with water of mass m to a depth h and Y is empty. When the tap is opened, water flows from X to Y until the depths of water in both vessels are equal. By considering the change to the position of the centre of gravity of the entire body of water, what is the decrease in the gravitational potential store of the water during this process? A 0 B mgh 4 C mgh 2 D mgh 12 A 15 W lamp is turned on for 30 minutes. During this period, it transfers 1000 J of energy to its internal store and 2500 J of energy to the internal store of the surrounding air. What is the efficiency of the lamp? A 0.13 B 0.29 C 0.71 D 0.87 13. What happens when a solid is heated and expands? A The molecules do not change size and the spaces between the molecules become larger. B The molecules expand and the spaces between the molecules become larger. C The molecules expand and the spaces between the molecules become smaller. D The molecules expand and the spaces between the molecules do not change size. tap

7 6091/01/CGS/2025 14 The syringe in the diagram contains a gas at atmospheric pressure. The piston moves freely along the cylinder without any friction. When the syringe is heated from 40 C to 100 C, the piston moves outwards. When the temperature becomes steady, the piston stops moving. Which row correctly describes how the value of each of the following quantities at 100 C compares with its corresponding value at 40 C, after the piston stops? average speed of gas molecules pressure of gas in the cylinder A increases increases B increases unchanged C unchanged increases D unchanged unchanged 15. A copper rod is heated at one end. Which statement describes how heat transfer occurs in the copper? A Energetic copper molecules move from the cooler end to the hotter end. B Energetic copper molecules move from the hotter end to the cooler end. C Energetic free electrons move from the cooler end to the hotter end. D Energetic free electrons move from the hotter end to the cooler end.

8 6091/01/CGS/2025 16 During a barbeque, a piece of aluminium foil is used to wrap around a potato before placing it in the fire. The foil has a shiny and dull side. Which side should be on the outside and why? outside surface reason A dull absorbs heat faster B dull conducts heat faster C shiny absorbs heat faster D shiny conducts heat faster 17 The temperature of a body increases by 1 °C. Which other quantity also increases? A heat capacity B internal energy C specific heat capacity D specific latent heat 18 Equal masses of s olids X and Y are heated successively in a well -insulated container. Heat is transferred to each of them at the same rate. A temperature-time graph for the process is shown below. Which statement is correct about X and Y? A Solid X has a higher melting point than solid Y. B Solid X has a lower specific heat capacity than solid Y. C Solids X and Y have the same specific latent heat of fusion. D Solids X and Y melt with the same amount of heat transferred. temperature / oC time / s

9 6091/01/CGS/2025 19 The graph shows how the displacement of a particle in a wave varies with time. Which of the following gives the features of the wave? amplitude / cm frequency / Hz type A 2.0 0.17 transverse B 2.0 0.25 transverse or longitudinal C 4.0 0.17 transverse or longitudinal D 4.0 0.25 longitudinal 20 A police car with its siren sounding is stationary in heavy traffic. A pedestrian notices that, although the loudness of the sound produced does not change, the pitch varies. Which row describes the amplitude and the frequency of the sound? amplitude frequency A constant constant B constant varying C varying constant D varying varying

10 6091/01/CGS/2025 21 Excessive exposure to some regions of the electromagnetic spectrum can cause harmful effects to people. Which regions cause mutation of cells in the body, skin burns and internal heating of body cells? mutation of cells skin burns internal heating of body cells A radio waves infrared visible light B radio waves ultraviolet mi