# Cambridge International Examinations Cambridge International General Certificate of Secondary Education

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1 ambridge International Examinations ambridge International General ertificate of Secondary Education * * PHYSIS 0625/02 Paper 2 Multiple hoice (Extended) For Examination from 2016 SPEIMEN PPER dditional Materials: Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or H is recommended) 45 minutes RE THESE INSTRUTIONS FIRST Write in soft pencil. o not use staples, paper clips, glue or correction fluid. Write your name, entre number and candidate number on the nswer Sheet in the spaces provided unless this has been done for you. O NOT WRITE IN NY ROES. There are forty questions on this paper. nswer all questions. For each question there are four possible answers,, and. hoose the one you consider correct and record your choice in soft pencil on the separate nswer Sheet. Read the instructions on the nswer Sheet very carefully. Each correct answer will score one mark. mark will not be deducted for a wrong answer. ny rough working should be done in this booklet. Electronic calculators may be used. Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s 2 ) The syllabus is accredited for use in England, Wales and Northern Ireland as a ambridge International Level 1/Level 2 ertificate. This document consists of 23 printed pages and 1 blank page. ULES 2014 [Turn over

2 1 Which quantity is measured in newton seconds (N s)? 2 impulse moment power work done 2 Which measurement can be made using a micrometer screw gauge? the air pressure of a tyre the diameter of a wire the turning effect of a spanner the wavelength of microwaves 3 parachutist is falling at terminal velocity, without her parachute open. She now opens her parachute. What is the direction of her motion, and what is the direction of her acceleration, immediately after she opens her parachute? direction of motion of the parachutist downwards downwards upwards upwards direction of acceleration of the parachutist downwards upwards downwards upwards 4 n astronaut in an orbiting spacecraft experiences a force due to gravity. This force is less than when she is on the Earth s surface. ompared with being on the Earth s surface, how do her mass and her weight change when she goes into orbit? mass in orbit decreases decreases unchanged unchanged weight in orbit decreases unchanged decreases unchanged ULES /02/SP/16

3 5 The diagram shows an experiment to find the density of a liquid. 3 cm 3 cm measuring cylinder balance liquid g g What is the density of the liquid? 0.5 g / cm g / cm g / cm g / cm 3 6 n experiment is carried out to measure the extension of a rubber band for different loads. The results are shown below. load / N length / cm extension / cm Which figure is missing from the table? The diagram shows a satellite that is moving at a uniform rate in a circular orbit around the Earth. Which statement describes the motion of this satellite? It is accelerating because its speed is changing. It is accelerating because its velocity is changing. It is not accelerating but its speed is changing. It is not accelerating but its velocity is changing. ULES /02/SP/16 [Turn over

4 8 Which statement about an object moving in a straight line through air is correct? 4 When it accelerates, the resultant force acting on it is zero. When it moves at a steady speed, the air resistance acting on it is zero. When it moves at a steady speed, the resultant force acting on it is zero. When it moves, there is a resultant force acting on it. 9 beam pivoted at one end has a force of 5.0 N acting vertically upwards on it as shown. The beam is in equilibrium. pivot 5.0 N 2.0 cm 3.0 cm What is the weight of the beam? weight of beam 2.0 N 3.0 N 3.3 N 5.0 N 10 car has a mass of 1000 kg and a momentum of kg m / s. What is its kinetic energy? 6 kj 12 kj 72 kj 144 kj ULES /02/SP/16

5 11 Which diagram shows two forces X and Y with their resultant force? 5 resultant resultant Y X Y X resultant resultant X Y X Y 12 ball is dropped on to a hard surface and bounces. It does not bounce all the way back to where it started, and so has not regained all of its original gravitational potential energy. ball dropped from here ball bounces to here hard surface Which statement accounts for the loss of gravitational potential energy? Energy was destroyed as the ball hit the ground. Energy was destroyed as the ball travelled through the air. The chemical energy and elastic energy of the ball have increased. The internal (heat) energy of the ball and its surroundings has increased. ULES /02/SP/16 [Turn over

6 13 The Sun is the original source of energy for many of our energy resources. Which energy resource does not originate from the Sun? 6 geothermal hydroelectric waves wind 14 dam across a lake is divided into two sections by a rock. Section X is longer than section Y but the two sections are otherwise identical. The water in the lake by the dam is the same depth everywhere. The diagram shows a view from above of the lake and the dam. section X of dam water in lake rock section Y of dam The water creates a total force on each section of the dam and an average pressure on each section of the dam. Which statement is correct? The average pressure on X equals the average pressure on Y. The average pressure on X is less than the average pressure on Y. The total force on X equals the total force on Y. The total force on X is less than the total force on Y. ULES /02/SP/16

7 7 15 The diagram shows a simple mercury barometer alongside a mercury manometer. The manometer contains some trapped gas. vacuum cm trapped gas cm mercury What is the pressure of the trapped gas? 10 cm of mercury 50 cm of mercury 66 cm of mercury 86 cm of mercury ULES /02/SP/16 [Turn over

8 16 Very small pollen grains are suspended in a beaker of water. bright light shines from the side. 8 Small, bright dots of light are seen through a microscope. The dots move in rapidly changing, random directions. eye microscope light What are the bright dots? pollen grains in water pollen grains being hit by other pollen grains pollen grains being hit by water molecules water molecules being hit by other water molecules water molecules being hit by pollen grains 17 sealed gas cylinder is left outside on a hot, sunny day. What happens to the average speed of the gas molecules and to the pressure of the gas in the cylinder as the temperature of the gas rises? average speed of gas molecules decreases decreases increases increases pressure of gas in cylinder decreases increases decreases increases ULES /02/SP/16

9 9 18 The diagram shows four beakers,, and. The beakers contain different amounts of the same liquid at the same temperature. The beakers are left next to each other on a laboratory bench overnight. The diagrams are all drawn to the same scale. From which beaker does the largest quantity of liquid evaporate? 19 Which line in the table shows the relative expansion of the three states of matter from the most expansion to the least expansion? most expansion least expansion solids > liquids > gases solids > gases > liquids gases > liquids > solids gases > solids > liquids 20 The diagram shows a liquid-in-glass thermometer. glass bulb stem liquid liquid thread Which two features both affect the sensitivity of the thermometer? mass of liquid and diameter of liquid thread mass of liquid and length of stem thickness of glass bulb and diameter of liquid thread thickness of glass bulb and length of stem ULES /02/SP/16 [Turn over

10 10 21 student wishes to calculate the specific heat capacity of copper. He has a block of copper and an electrical heater. He knows the power of the heater. Which other apparatus does he need? balance stop watch thermometer key = needed = not needed 22 mass of 0.20 kg of a substance is initially solid. It is heated at a steady rate of 500 W. The graph shows how the temperature of the substance changes with time. temperature / time / s What is the specific latent heat of fusion of the substance? J / kg J / kg J / kg J / kg ULES /02/SP/16

11 23 The diagram shows some ice being used to lower the temperature of some warm water. 11 ice glass warm water What is the main process by which the water at the bottom of the glass becomes cool? condensation conduction convection radiation ULES /02/SP/16 [Turn over

12 24 The diagrams show water waves that move more slowly after passing into shallow water. 12 Which diagram shows what happens to the waves? fast slow fast slow deep water shallow water deep water shallow water fast slow fast slow deep water shallow water deep water shallow water 25 The diagram shows a ray of monochromatic light passing through a semi-circular glass block. 50 ray emerges in air close to glass surface incident ray glass air reflected ray What is the refractive index of the glass? ULES /02/SP/16

13 13 26 n object O is placed close to a thin converging lens. The diagram represents three rays from the top of O passing through the lens. O Which type of image is produced by the lens when the object O is in this position? real and diminished real and enlarged virtual and diminished virtual and enlarged 27 n echo-sounder on a ship produces a pulse of sound. The echo is received by the echo-sounder after two seconds. ship echo-sounder sea bed The speed of sound in sea-water is 1500 m / s. What is the depth of the sea-water below the ship? 750 m 1500 m 3000 m 6000 m ULES /02/SP/16 [Turn over

14 28 The diagram shows apparatus that can be used to make a magnet. 14 power supply metal Which metal and which power supply are used to make a permanent magnet? coil metal iron iron steel steel power supply 6 V a.c. 6 V d.c. 6 V a.c. 6 V d.c. 29 positively charged plastic rod is placed just above a thick metal plate. The metal plate rests on an insulator and is connected to the earth by a wire. positive rod metal plate earthing wire insulator student disconnects the earthing wire and then removes the positively charged rod. The experiment is repeated. This time the student removes the positively charged rod and then removes the earthing wire. Which statement is correct? When the earthing wire is disconnected first, the metal plate becomes positively charged. When the earthing wire is disconnected first, the metal plate becomes negatively charged. When the plastic rod is removed first, the metal plate becomes positively charged. When the plastic rod is removed first, the metal plate becomes negatively charged. ULES /02/SP/16

15 15 30 The resistance of a wire depends on its length l and on its cross-sectional area. The resistance is directly proportional to l and directly proportional to. directly proportional to l and inversely proportional to. inversely proportional to l and directly proportional to. inversely proportional to l and inversely proportional to. 31 In the circuit shown, the ammeter reads 2.0 and the voltmeter reads 12 V. 12 V 6.0 Ω V How much energy is transferred by the resistor in 10 seconds? 2.4 J 14.4 J 240 J 1440 J ULES /02/SP/16 [Turn over

16 32 The diagram shows part of an electrical circuit Ω 2.0 Ω The current in the 4.0 Ω resistor is 3.0. What is the current in the ammeter? ULES /02/SP/16

17 17 33 The circuit diagram shows a thermistor in a potential divider. voltmeter is connected across the thermistor. V The graph shows how the resistance of the thermistor changes with temperature. resistance temperature s the thermistor becomes warmer, what happens to its resistance and what happens to the reading on the voltmeter? resistance decreases decreases increases increases voltmeter reading decreases increases decreases increases ULES /02/SP/16 [Turn over

18 34 circuit-breaker is designed to protect a circuit which usually carries a current of 2. The time taken to break the circuit depends on the current, as shown in the graph. 18 time taken to break the circuit / s current / What happens when the current in the circuit is 2 and what happens when the current is 18? when the current is 2 when the current is 18 the circuit breaks in less than 5 seconds the circuit breaks in less than 5 seconds the circuit breaks in less than 5 seconds the circuit does not break the circuit does not break the circuit breaks in less than 5 seconds the circuit does not break the circuit does not break ULES /02/SP/16

19 19 35 solenoid is connected in series with a sensitive ammeter. The N pole of a magnet is placed next to one end of the solenoid, marked X. solenoid N X magnet First, the N pole of the magnet is pushed towards X, then the magnet is pulled away from X. uring both stages the ammeter deflects. Which type of magnetic pole is induced at X during these two stages? as N pole moves towards X N pole N pole S pole S pole as N pole moves away from X N pole S pole N pole S pole ULES /02/SP/16 [Turn over

20 20 36 The diagram shows a transformer. soft-iron core primary coil secondary coil Which row describes the magnetic field in the soft-iron core and the magnetic field in the secondary coil when the transformer is operating? in soft-iron core magnetic field in secondary coil changing changing constant constant changing constant changing constant ULES /02/SP/16

21 21 37 The graph shows the output of an a.c. generator. The coil in the generator rotates 20 times in one second. output p.d. / V time / s The speed of rotation of the coil steadily increases. Which graph best shows how the output changes? output p.d. / V time / s output p.d. / V time / s +2 output p.d. / V time / s 2 +2 output p.d. / V time / s 2 ULES /02/SP/16 [Turn over

22 38 The diagram shows a wire placed between two magnetic poles of equal strength. 22 current passes through the wire in the direction shown. The current causes a downward force on the wire. wire direction of current direction of force What is the arrangement of the magnetic poles? S N N S N N S S ULES /02/SP/16

23 39 beam of γ-rays passes between two charged metal plates as shown in the diagram. 23 γ-rays How do the γ-rays pass between the two charged plates? + The rays are deflected in a direction perpendicular to the page The rays are deflected towards the negative plate. The rays are deflected towards the positive plate. The rays will continue in the same direction. 40 powder contains 400 mg of a radioactive isotope that emits α-particles. The half-life of the isotope is 5 days. What mass of this isotope remains after 10 days? 0 mg 40 mg 100 mg 200 mg ULES /02/SP/16

24 24 LNK PGE Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (ULES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. ambridge International Examinations is part of the ambridge ssessment Group. ambridge ssessment is the brand name of University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. ULES /02/SP/16

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