Compassvale-Secondary-Combined-Physics-Prelim-2022

BP-118 EfErfi+ COMPASSVALE SECONDARY SCHOOL PRELIMINARY EXAMINATION 2022 sctENcE (PHYSICS, CHEMTSTRY) 5076/01 Paper'l Multiple Choice Secondary Four Express / Five Normal (Academic) Name lndex No: _ Class: Sec _ Additional Materials: Multiple Choice Answer Sheet Duration: Date: Marks: th 31 Aug2022 140 READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or conection fiuid. 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 conect and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each conect 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 16. A copy of the Periodic Table is printed on page 17. The use of an approved scientific calculator is expected, where appropriate. This paper consists of 17 printed pages including this page PartnorlnLeaming 118 Setter: Mr Chan HL & Mdm C Lim

BP-1I9 2 1 The diagrams show part of a micrometer screw gauge and a vernier scale 10 micrometer screw gauge What are the readings shown? vemier caliper 0 0 45 40 35 micrometer scale reading / mm vernier scale reading / mm A B c o 5.42 5.42 5.92 5.92 3.4 4.4 3.4 4.4 2 What is the order of magnitude for the diameter of an atom and for the diameter of the Earth? diameter of atom diameter of Earth A B c D 0.1 nanometres 0.1 nanometres 0.1 micrometres 0.1 micrometres 10 megametres 10 gigametres 10 megametres 10 gigametres 3 A car is accelerating along a road in the direction shown. The wheel shown is connected to the engine. ln which direction is the force of friction exerted by the road on the car tyre? wheel direction of travel tyre D c 0 5 mm = -I -I - T I '100mm a oaoa road surface PartnerlnLeaming 119 I I I I

BP- 1 20 3 4 The speedtime graph shows a motorcycle travelling at a steady speed before decelerating uniformly to a stop. 40 speed 30 m/s 20 10 time / s 0246810 What is the average speed of the motorcycle over the 10 s? A 15 rn/s B 21 mls C 30 m/s D 210 nr/s 5 A brick is brought from Earth to the surface of the Moon Given that the gravitational field strength of the lvloon is I .6 N/kg, how will the properties of the brick change? Student A lifts a box weighing 40 N from the floor to a height of 0.80 m in 4.0 s. Student B lifts another box weighing 60 N from the floor to a height of 0.50 m in 2.0 s. Compared to student A, student B does A less work but exerts more power. B more work but exerts less power. C the same wo* but exerts more power. D the same work but exerts less power. G weight density A B c D tncreases increases decreases decreases remains unchanged increases decreases remains unchanged PartnerlnLeaming 120 I! inertia decreases decreases remains unchanged remains unchanged

4 8 7 Which statement is conect? A ln a gas, the kinetic energy of the molecules increases with decreasing temperature. B ln a liquid, the molecules move around one another. C The molecules in a liquid are further apart than in a gas. D The molecules in a liquid are closer together than in a solid. Boiling and evaporation are different processes. Which statement is not correct? A Boiling occurs throughout the entire liquid but evaporation only occurs at the surface. B Evaporation can only occur when the temperature of the liquid is high enough. C Evaporation causes the temperature of a liquid to fall. D When a boiling liquid is heated its temperature remains constant. 9 What is meant by the amplitude of a wave? A the average displacement from the equilibrium position B the instantaneous displacement from the equilibrium position C the maximum displacement from the equilibrium position D the minimum displacement from the equilibrium position 10 11 Which statement about microwaves and ultra-violet radiation is conect? A They travel at about 330 m/s in air. B They travel as longitudinal waves in air. C Ultra-violet radiation does not obey the law of reflection but microwaves do D Ultra-violet radiation has a higher frequenry than microwaves. Which row conectly lists the applications of parts of the electromagnetic spectrum? mrcrowaves infra-red radiation gamma rays A B c D cooking sunbed satellite television telecommunications cancer treatment television controller toaster sterilisation television controller sterilisation &lncer treatment security inspections PartnerlnLeaming 121 BP- 121

BP-1?2 5 12 A man stands between 2 cliffs as shown in the diagram and claps his hands once. cliff 1 cliff 2 850 m 510 m A 0.17 s B 0.33 s C '1.0 s D 2.0 s path the ray would take in absence of boundary plane minor incident ray reflected ray What is the change in direction of the ray? A 50' B 65" c 130" D 155" 14 When a plastic rod is rubbed with a duster, the plastic rod becomes negatively charged and the duster positively charged. Which of the following correctly explains the charges on the plastic rod and the duster? plastic rod duster A B c D gained electrons lost protons lost electrons lost protons lost electrons gained protons gained electrons lost electrons 65 normal ParlnerlnLeaming '122 Assuming that the velocity of sound in air is 340 m/s, what will be the time interval between the 2 loudest echoes? I I I {3 A ray of light incident on a plane mirror will change direction when it is reflected. I m

BP-123 6 15 16 17 The diagram shows a negatively ctarged polythene strip and a positively charged acetate strip that are freely suspended. polythene strip acetate strip Two rods X and Y are brought in tum to these two strips. Rod X attracts both the polythene strip and the acetate strip. Rod Y attracts the polythene strip but repels the acetate strip. Which type of charge is on each rod? A charge of 150 C flows through an electric appliance in 2.0 minutes. What is the average cunent in the appliance? A 0.013 A B 1.25 A G 754 D 3OOA A wire of length 1.8 m and a cross-section of 3.0 x 10{ m2 has a resistanc€ ol 1.2a. Another wire of the same material has a length of 0.90 m and a cross-sectional area of 1.0 x 106 m2. What is the resistance of the shorter wire? 0.20 C, 0.80 f, 1.8 c, 7.2A A B c D rod X rod Y A B c D negative positive uncharged uncharged positive negative negative positive PartnerlnLeaming 123 I

BP-124 7 18 A lamp is connected in four circuits, each using identical batteries. The resistors are all identical. ln which circuit will the lamp be brightest? A 19 A kitchen hood is controlled by one switch. The unit contains a 0.80 kW fan and a 50 W lamp. ln one week, the lamp uses 0.60 kwh of electrical energy. How much electricity is used by the fan alone? A 0.063 kwh B 0.80 kwh c 9.6 kwh D 12 kwh B rlr-l D rl c rl I I I I I ParlnerlnLeaming 124

BP- 1 25 I 20 The figure shows a coil of insulated wire around an iron core. Two iron needles hang from the ends ofthe iron core and are inclined towards each other as shown. iron core blunt end iron needles sharp end -------> Which statement is correct? A The blunt ends of both needles are north poles. B The needles have become permanently magnetised C The needles are induced magnets. D The sharp ends of both needles are north poles. PartnerlnLeaming 125

BP- 1 26 I 21 Which apparatus is most suitable for collecting 25.0 cm3 of fluorine at room temperature? burette gas syringe measuring cylinder pipette The melting and boiling points of two substances X and Y are shown Substances X and Y are miscible liquids. substance melting point / "C boiling point / 'C X Eq 80 -95 110 Which method is most suitable to separate substances X and Y? crystallisation filtration fractional distillation simple distillation 23 1 ln gaseous state, particles are far apart and moving in random directions. Particles in solid st