2024 MSH SC(PHY) PRELIM P1

O Level Centre Number/ Index Number Class Name MARIS STELLA HIGH SCHOOL PRELIMINARY EXAMINATION SECONDARY FOUR SCIENCE (PHYSICS, CHEMISTRY) 5086/01 Paper 1 Multiple Choice 23 August 2024 1 hour Additional Materials: Optical Test Answer Sheet (OTAS) – 1 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. 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 answer 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. A copy of the Data Sheet is printed on page 20. A copy of the Periodic Table is printed on page 21. The use of an approved scientific calculator is expected, where appropriate. The total number of marks for this paper is 40. At the end of the examination, hand in the following separately: (1) Optical Test Answer Sheet (OTAS)
 (2) Question Paper This document consists of 21 printed pages and 1 blank page.

2 1 Which value is one-thousandth of a metre? A 0.0001 cm B 0.1 mm C 100 nm D 1000 µm 2 The diagram shows a distance-time graph of a car. In which region is the car accelerating? A V to W B W to X C X to Y D Y to Z 3 Which statement about mass and weight is correct? A Mass is a scientific term that means the same as weight. B The mass of an object on Earth is 10 times its weight. C Weight is a scalar quantity, mass is a vector quantity. D Weight is the force of gravity pulling on a mass. 4 The driving force on a moving car of mass 1000 kg is 2000 N. The car is moving along a level road. The frictional force opposing the motion is 1500 N. What are the values of the acceleration and the resultant force? acceleration m / s2 resultant force / N A 0.50 500 B 0.50 2000 C 2.00 500 D 2.00 2000

3 5 The diagram below shows a device used to convert old newspapers into blocks that can be burnt. A force F is exerted at the end of the handle which allows the plate in contact with the newspapers to squeeze water out of it. What is the magnitude of the force F if the pressure exerted on the paper is 7200 N/m2? A 60 N B 180 N C 360 N D 540 N 6 The snatch is the first of two lifts contested in the sport of weightlifting. The current record holder for the 73 kg class for the snatch is Shi Zhiyong from China. At the Asian Championships in 2021, he lifted a weight of 1690 N through a height of 1.6 m in 2.6 s. The diagram below shows Shi Zhiyong lifting the barbell from the ground to overhead in one continuous motion. What is his average power during the snatch? A 450 W B 304 W C 1040 W D 7030 W

4 7 A block of ice is melting. What happens to the potential energy and kinetic energy of the molecules? potential energy kinetic energy A increase no change B increase increase C no change no change D no change increase 8 An emergency foil blanket is a low-weight blanket made of heat-reflective thin plastic to retain body heat for victims in shock or for prevention of shock. The diagram below shows a man in an emergency blanket. Which of the following statements correctly describe how the shiny surface of the blanket helps the man retain body heat? A Silver surfaces are poor absorbers of heat. B Silver surfaces are poor conductors of heat. C Silver surfaces reflect heat from the surroundings. D Silver surfaces are poor emitters of heat.

5 9 Which diagram shows an example of a longitudinal wave? A B C D

6 10 The diagram shows the displacement -time graph when a musician plays a single note on a violin. The same note is then played more loudly. Which of the following shows its displacement-time graph? A B C D

7 11 A plane mirror is placed at a distance 200 cm in front of a lady. A poster is fixed 70 cm behind the eyes of the lady. What is the distance of the image of the poster from the lady? A 70 cm B 270 cm C 470 cm D 540 cm 12 The diagram shows a thin converging lens forming a real image of an object. What happens to the image as the object is moved further away from the focal point F? A It moves further away from the lens and decreases in size. B It moves further away from the lens and increases in size. C It moves towards the lens and decreases in size. D It moves towards the lens and increases in size. 13 The diagram shows the main components of the electromagnetic spectrum. P X-rays Q visible light infra-red R radio waves What are the components P, Q and R? P Q R A gamma-rays microwaves ultra-violet B gamma-rays ultra-violet microwaves C microwaves gamma-rays ultra-violet D microwaves ultra-violet gamma-rays 200 cm 70 cm poster mirror

8 14 Many devices produce electromagnetic waves when operating. Which device produces electromagnetic waves of the highest frequency? A mobile phone B sunbed C television controller D toaster 15 In the circuit shown, 20 J of energy is dissipated by the cell in driving 8.0 C of charge round the circuit. What is the value of the e.m.f. of the cell? A 0.40 V B 2.5 V C 28 V D 160 V 16 The graph shows the voltage -current graphs for three equal lengths of the same material of resistance wire X, Y and Z. The resistance and cross-section area of the wires change in going from X to Z. Which row describes these changes? resistance cross-sectional area A decreases decreases B decreases increases C increases decreases D increases increases

9 17 A student sets up the circuit shown. The currents measured by the ammeters are shown. Which equation is correct? A 𝐼1 = 𝐼2 + 𝐼3 + 𝐼4 B 𝐼1 = 𝐼2 = 𝐼3 = 𝐼4 C 𝐼2 + 𝐼3 = 𝐼4 + 𝐼1 D 𝐼4 = 𝐼1 + 𝐼2 + 𝐼3 18 A student plugs in a new washing machine to the mains which is fixed with a circuit breaker. When the washing machine starts operating it causes the circuit breaker to trip. The student recalls what he learned in his Physics class and wrote these statements down. I. A circuit breaker contains an electromagnet. II. Household appliances are connected in parallel. III. The circuit breaker should be connected to the earth wire. IV. The washing machine’s body is made of metal hence it needs an earth wire. Which of the above statements are correct? A II and III only B I, II and III only C I, II and IV only D all of the above

10 19 An experiment to investigate magnetism is shown in the figure below. The bar magnet X is placed on an electronic balance and the reading is zeroed. A solenoid is set up above bar magnet X and the electronic balance read 1.6 N when the switch is closed. An unknown metal bar Y is placed in the solenoid and the reading increased to 2.8 N. Which of the following shows the orientation of the electrical source and the material of Y? Electrical source Material of Y A copper B iron C copper D iron