Regent Prelim P1

NAME: ________________________________ INDEX NUMBER: ________ CLASS: ______________ SETTER: MDM NOR RASIDAH _____________________________________________________________________ PHYSICS 6091/01 Paper 1 Multiple Choice 27 August 2024 1 hour Additional Materials: Multiple Choice Answer Sheet _____________________________________________________________________ READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and index number 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 in this booklet. The use of an approved scientific calculator is expected, where appropriate. ______________________________________________________________________ This document consists of 19 printed pages. TARGET PARENT’S SIGNATURE REGENT SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 SECONDARY FOUR (EXPRESS) 40

2 1 Which frequency is in the range heard by a healthy human ear? A 12 mHz B 12 Hz C 12 kHz D 12 MHz 2 Which list of SI units contains only base units? A ampere, metre, kelvin B ampere, joules, kilogram C kilogram, metre, ohm, D kilogram, newton, kelvin 3 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 velocity / km/h time / h

3 4 Iron blocks are made available in different sizes. Some of the blocks are randomly selected and their masses and volumes are measured. Which graph shows the relationship between the two quantities? A B C D 5 Two identical measuring cylinders containing different liquids are placed on a simple balance. They balance 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. mass volume 0 mass volume 0 mass volume 0 mass volume 0 Liquid P Volume = 100 cm3 Liquid Q Volume = 50 cm3

4 6 The diagram below shows how the net force acting on an object varies with time. Which one of the following graphs correctly shows its velocity varies with time? A B C D 7 A man with an open parachute falls to Earth at constant speed. Consider the following forces: P the upward force of the parachute on the man Q the upward force of the man on the Earth R the downward force of the Earth on the parachute S the downward force of the man on the parachute Which two forces are a Newton’s action-reaction pair? A P and Q B P and R C P and S D Q and R

5 8 Two blocks are connected by a light string S as shown in the figure. Under the action of a constant force, F, they move with a uniform acceleration of 3 m s-2. What will the acceleration of the 4 kg block be if the string S suddenly breaks? A 4.0 m/s2 B 4.5 m/s2 C 5.0 m/s2 D 6.0 m/s2 9 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. 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

6 10 A child, who weighs 260 N, slides down a slide. The height of the slide is 3.0 m. The work done against friction as the child travels down the slide is 200 J. What is the change in energy in the gravitational potential store and the final energy in the kinetic store of the child? change in energy in the gravitational potential store final energy in the kinetic store of the child A 780 J 580 J B 780 J 780 J C 7 800 J 7 600 J D 7 800 J 7 800 J 11 A machine applied a force on a 2.0 kg box. The box accelerates at 0.6 m/s2. It travels 50 m in 8 s. What is the power of the machine? A 7.5 W B 12.5 W C 75 W D 125 W 3.0 m

7 12 Some air is trapped between the closed end of a glass tube and a mercury plug. The atmospheric pressure is 76 cm Hg. The length of the mercury plug is 10 cm in both positions shown. What is the pressure of the trapped air in the tube for positions R and S respectively? pressure of trapped air in position R / cm Hg pressure of trapped air in position S / cm Hg A 10 76 B 10 86 C 76 10 D 76 86 13 The diagram shows two identical pieces of apparatus. One is filled with water and the other is filled with mercury. Water is less dense than mercury. At which point is the liquid pressure the greatest? R S trapped air trapped air mercury plug

8 14 A sealed rigid container containing gas is placed in the freezer. Which statement about the gas in the container is correct? A The volume of each gas particle decreases. B The average kinetic energy of the gas particles remains the same. C The average distance between the particles remains the same. D The particles collide with the walls of the container at the same rate. 15 Four different metal blocks are given the same quantity of thermal energy. Which block has the greatest thermal capacity? 16 A tray for making ice cubes holds 0.008 kg of water. The specific latent heat of fusion of ice is 3.3 × 102 kJ/kg. Which of the following statement is true? A 2.6 × 101 J of energy is absorbed to change it into ice at 0°C. B 2.6 × 103 J of energy is removed to change it into ice at 0°C. C 4.1 × 104 J of energy is absorbed to change it into ice at 0°C. D 4.1 × 107 J of energy is removed to change it into ice at 0°C. 17 Which action will not produce convection current in a container filled with water at 30 °C? A dropping a piece of hot metal into the water B floating a piece of ice on the water C lighting a candle beneath the container D placing a 100 W lighted bulb just above the water surface A B C D

9 18 In the diagram, two copper cans X and Y with outer surface of different texture are filled with the same amount of water at boiling point and left in the room. Which of the following statements about the temperature of the two cans after a short while is true? A X is cooler because a dull surface is a good absorber. B X is cooler because a dull surface is a good emitter. C X is warmer because a dull surface is a good absorber. D X is warmer because a dull surface is a good emitter. 19 The two graphs shown below refer to the same wave. What is the speed of the wave? A 0.3 m/s B 1.2 m/s C 150 m/s D 300 m/s dull surface X polished surface Y distance / m displacement / m time / ms 0.5 1.5 2.5 displacement / m 0.3 0.6 0.9

10 20 Waves travel more quickly on the surface of water when the water is deep. A stone is dropped at point X into a pool of varying depth. The diagram shows the first three wavefronts on the surface of the pool. The region between X and which labelled p