AHS 2025 PHY PRELIM P1 QP

Anglican High 2025 6091/01/Prelim/25 [Turn over Anglican High School Secondary Four Preliminary Examination 2025 CANDIDATE NAME CLASS INDEX NUMBER PHYSICS 6091/01 Paper 1 Multiple Choice 29 August 2025 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction tape. Write your name, index number and class on the Answer Sheet in the spaces provided unless this has been done for you. 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 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 on this question paper. The use of an approved scientific calculator is expected, where appropriate. This document consists of 18 printed pages. 4 S4

2 Anglican High 2025 6091/01/Prelim/25 1 Which pair of units measure the same quantity? A A and C / s B W and J s C N and kg m / s D N m2 and Pa 2 Which instrument can be directly used to measure the circumference of a cup? A digital calipers B measuring tape C digital micrometer screw gauge D metre rule 3 Five poles are positioned equally apart along a straight road. A car starts from rest and accelerates at an increasing rate from pole 1 to pol e 2 till it reaches maximum acceleration. It then continues with this maximum acceleration from pole 2 to pole 3 . The car then travels along the road with zero acceleration until it reaches pole 4 . Between pole 4 and 5, it starts to decelerate at a decreasing rate. (no to scale) The time intervals for the car to travel between the poles are measured. Which time interval is the shortest? A pole 1 to pole 2 B pole 2 to pole 3 C pole 3 to pole 4 D pole 4 to pole 5

3 Anglican High 2025 6091/01/Prelim/25 [Turn over 4 A small jet plane is at rest on a runway, ready for take-off. The average acceleration during take-off is 2.2 m / s2 and the minimum speed required for take-off is 66 m / s. What is the minimum length of runway required for the jet plane to take off? A 150 m B 990 m C 1500 m D 1900 m 5 A man of mass 50 kg stands on an electronic balance in a lift. The balance reads 600 N. The gravitational field strength, g is 10 N / kg. Which of the following describes the motion of the lift? A accelerating upwards B accelerating downwards C moving upwards with constant speed D moving downwards with constant speed 6 A resultant force acts on an object and causes it to move in a straight line. The graph shows how the resultant force on the object varies with time. Which of the following is true about the motion of the object? A The object accelerates at a constant rate until it reaches a constant velocity. B The object accelerates at a decreasing rate until it reaches a constant velocity. C The object decelerates at a constant rate and finally come to rest. D The object decelerates at a decreasing rate and finally come to rest.

4 Anglican High 2025 6091/01/Prelim/25 7 35 g of liquid Z is poured into a measuring cylinder containing 56 g of paraffin oil. Liquid Z is insoluble in the oil and the total volume of the substances in the cylinder is 90 cm3. Given that the density of paraffin oil is 0.80 g / cm3, what is the density of liquid Z? A 0.50 g / cm3 B 0.78 g / cm3 C 1.0 g / cm3 D 1.8 g / cm3 8 An object is pivoted at point P. A student ties a length of string to a peg on the object. He pulls the string with a force F in the direction shown. What is the moment of the force F about the point P? A F x q B F x r C F x s D F x t peg s t r q string

5 Anglican High 2025 6091/01/Prelim/25 [Turn over 9 The diagram shows the rest position of a balancing toy near the edge of a table. Which position is most likely to be the centre of gravity of the toy? 10 The diagram shows a hydraulic brake system used in vehicles. A tube links the master piston to the slave piston. Both pistons are cylindrical and the area of the slave piston is four times that of the master piston. The driver presses down on the pedal and a force of 450 N is applied on the master piston. What is the force applied by the slave piston to the brake pad? A 113 N B 225 N C 900 N D 1 800 N

6 Anglican High 2025 6091/01/Prelim/25 11 A manometer containing water is used to measure the pressure of a gas supply, as shown. The gravitational field strength, g is 10 N / kg. The atmospheric pressure is 76 cm Hg. The density of mercury is 13 600 kg / m3 and density of water is 1000 kg / m3. What is the pressure of the gas supply? A 100 000 Pa B 104 000 Pa C 106 000 Pa D 144 000 Pa 12 Four balls with different masses are dropped from the heights shown. Air resistance may be ignored. The acceleration due to gravity g, is 10 m / s2. Which ball has the largest energy in its kinetic store just before it hits the ground? 1.5 kg 2.5 kg 4.5 kg 3.5 kg

7 Anglican High 2025 6091/01/Prelim/25 [Turn over 13 A box is initially at rest at the top of a rough slope. The box slides down the slope. The mass of the box is 2.0 kg and gravitational field strength, g is 10 N / kg. The slope is 4.0 m long and 2.0 m high. The frictional force acting on the box is 2.6 N. What is the speed of the box as it reaches the bottom of the slope? A 5.4 m / s B 6.3 m / s C 7.1 m / s D 9.5 m / s 14 Electromagnetic waves from the Sun are absorbed by solar panels with a total area of 12 m2. Every 1.0 m2 of the solar panels absorbs 0.85 kJ of energy from the Sun each second. If the efficiency of the panels is 16 %, what is the power output of the panels? A 1.6 kW B 2.2 kW C 64 kW D 160 kW

8 Anglican High 2025 6091/01/Prelim/25 15 Brownian motion can be observed in small magnetic particles suspended in a fluid. What causes the motion of the small magnetic particles? A The collisions of the small magnetic particles with each other. B The gravitational forces acting on the small magnetic particles in the fluid. C The presence of magnetic fields within the fluid. D The fluid particles bombarding the small magnetic particles. 16 A bicycle tyre contains air. When the bicycle is in motion, the air in the tyre becomes warmer and the air pressure inside the tyre increases. The volume of the tyre remains unchanged. Which description about the air particles in the tyre when the bicycle is in motion is correct? 17 Energy in the internal store of the following objects is dissipated to the surroundings. Which object transferred its energy by radiation only? A a concrete block with white surfaces at 100 °C in air B a metal block with black surfaces at 40 °C in air C a shiny metal satellite at 30 °C in outer space D the heating element of a kettle at 150 °C in water

9 Anglican High 2025 6091/01/Prelim/25 [Turn over 18 Two objects, A and B, are placed in physical contact with one another. They have the same temperature. Assume there is no energy transfer to the surrounding media. Which statement is correct? A There is energy transfer from all molecules in A to all molecules in B. B There is energy transfer from some molecules in A to some molecules in B, as well as from some molecules in B to some molecules in A. C Ther