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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONSInternational General Certificate of Secondary Education
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use a soft pencil for any diagrams, graphs or rough working.Do not use staples, paper clips, highlighters, glue or correction fluid.DO NOT WRITE IN ANY BARCODES.
Answer all questions.You may lose marks if you do not show your working or if you do not useappropriate units.Take the weight of 1 kg to be 10 N (i.e. acceleration of free fall = 10 m/s2).
At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.
1 A boy is fishing in a river. Nearby, a ferry-boat is taking passengers backwards and forwards across the river.
12
6
3
11
4
210
8
7 5
1
9
12
6
3
11
4
210
8
7 5
1
9
Fig. 1.1 Fig. 1.2
When he starts fishing one morning, the boy’s wristwatch is as shown in Fig. 1.1. When he finishes his morning’s fishing, the wristwatch is as shown in Fig. 1.2.
(a) For how many minutes was the boy fishing?
number of minutes = ................................................ [3]
(b) It takes the ferry-boat 20 minutes to load up passengers, take them across the river, load up with passengers at the other side, and return, to start all over again.
Calculate how many journeys, across the river and back, the ferry made whilst the boy was fishing.
number of journeys = ................................................ [2]
(b) An experimenter measures the extension of the spring with different loads, and obtains the graph shown in Fig. 3.2.
0 0
1
2
extension / cm
load / N
3
1 2 3 4 5
Fig. 3.2
(i) When the experimenter hangs an unknown load on the spring, the extension of the spring is 1.7 cm. Use Fig. 3.2 to find the weight of the unknown load.
weight = ............................................ N [1]
5 (a) Make the following sentences about sound echoes correct by crossing out the incorrect alternatives. An example has been given to help you.
large (example) An echo is caused when a sound wave hits a small obstacle. thin
reflected (i) An echo is a sound wave which is refracted by an obstacle. [1] dispersed
(ii) An echo from a stationary obstacle has a greater frequency than the same frequency as a smaller frequency than the sound hitting the obstacle. [1]
(b) Two students, A and B, are trying to use echoes to enable them to measure the speed of sound. Student A has two blocks of wood that make a loud sound when banged together. Student B has a stopwatch. They stand 240 m from the school wall, as shown in Fig. 5.1.
school wall
240 mB A
Fig. 5.1
Student A bangs the blocks together and, at the same time, B starts the stopwatch. B stops the stopwatch when he hears the echo. The watch then reads 1.6 s.
(i) How far did the sound travel during the 1.6 s? ................................ m [1]
(ii) Calculate the speed of sound.
speed of sound = ......................................... m/s [3]
(d) The left-hand tube now has air above the mercury; the right-hand tube has a vacuum. Complete the table below, using words chosen from the following list, to indicate the
effect of changing the external conditions.
rises falls stays the same
changeeffect on the level of the
mercury in the left-hand tubeeffect on the level of the
mercury in the right-hand tube
atmospheric pressurerises
temperature rises
[4]
[Total: 10]
7 This question requires the use of a ruler or other straight edge. Fig. 7.1 shows a ray of light striking a plane mirror.
mirror
ray oflight
A
Fig. 7.1
(a) On Fig. 7.1,
(i) draw the normal to the mirror at A, [1]
(ii) draw the path of the reflected ray, [1]
(iii) mark and label the angle of incidence, i, [1]
(iv) mark and label the angle of reflection, r. [1]
9 A toymaker wires a circuit in a toy house, so that a 6 V lamp can be switched on using either switch 1 at the bottom of the stairs or switch 2 at the top of the stairs.
The circuit is shown in Fig. 9.1.
6 V supply
6 Vlamp switch 2
switch 1
X
A
B
a
b
Y
Fig. 9.1
(a) When switch 1 is in position A, what is the position of switch 2 so that the lamp is lit?
10 The circuit in Fig. 10.1 shows an electromagnetic relay being used to switch an electric motor on and off. The relay coil has a much greater resistance than the potential divider.
M switch
6 V
motor
power supply for motor
contacts relay core
pivoted iron armature
Fig. 10.1
(a) The relay operates when there is a potential difference of 3 V across the coil. On Fig. 10.1, mark the position of the slider of the potential divider when the relay just
operates. [1]
(b) Describe how the relay closes the contacts in the motor circuit.
12 The nucleus of one of the different nuclides of polonium can be represented by the symbol
21884Po
(a) State the proton number of this nuclide. ........................ [1]
(b) State the nucleon number of this nuclide. ........................ [1]
(c) The nucleus decays according to the following equation.
21884Po 214
82Pb + emitted particle
(i) State the proton number of the emitted particle. .......................... [1]
(ii) State the nucleon number of the emitted particle. .......................... [1]
(iii) Name the emitted particle. Tick one box.
α-particle
β-particle
neutron
proton [1]
[Total: 5]
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 (UCLES) 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.
University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONSInternational General Certificate of Secondary Education
PHYSICS 0625/02
Paper 2 Core October/November 2007
1 hour 15 minutes
Candidates answer on the Question Paper.No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use a soft pencil for any diagrams, graphs or rough working.Do not use staples, paper clips, highlighters, glue or correction fluid.DO NOT WRITE IN ANY BARCODES.
Answer all questions.You may lose marks if you do not show your working or if you do not use appropriate units.Take the weight of 1 kg to be 10 N (i.e. acceleration of free fall = 10 m/s2).
At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.
1 Fig. 1.1 shows some liquid in a measuring cylinder. The metal can next to it has a cross-sectional area which is four times that of the measuring cylinder.
(d) Suggest why the temperature of the air in the balcony of the theatre (nearer the ceiling) is likely to be greater than that lower down in the theatre.
(a) The thermometer is used for measuring temperatures in school laboratory experiments.
State the units in which the temperatures are measured. .......................................... [1]
(b) On Fig. 5.1, mark where the liquid thread will reach when the thermometer is placed in
(i) pure melting ice (label this point ICE), [1]
(ii) steam above boiling water (label this point STEAM). [1]
(c) A liquid-in-glass thermometer makes use of the expansion of a liquid to measure temperature. Other thermometers make use of other properties that vary with temperature.
In the table below, write in two properties, other than expansion of a liquid, that can be used to measure temperature.
7 A girl drops a small stone from a bridge into a pond.
X
Fig. 7.1
(a) The stone hits the water surface at point X. Fig. 7.2, which is drawn full-size, shows the wavefront a fraction of a second after the stone hits the water.
(i) The wave travels at 5 cm / s. Calculate how far the wave travels in 0.3 s.
distance travelled = .......................................... cm [1]
(ii) On Fig. 7.2, draw the position of the wavefront 0.3 s after that already shown. [2]
X
Fig. 7.2
(b) A ringing bell also sends out waves in all directions.
State two ways in which these waves are different from the waves in part (a), other than the fact that one is created in air and the other in water.
(b) A second experiment is carried out with another sample of the same material. At the start of the experiment, this sample has twice the number of atoms as the first sample.
Suggest what values might be obtained for
(i) the activity at the start of the second experiment,
................................... count / s [1]
(ii) the half-life of the material in the second experiment.
................................... minutes [1]
(c) Name one type of particle that the material might be emitting in order to cause this activity.
12 A beam of cathode rays is travelling in a direction perpendicularly out of the page. The beam is surrounded by four metal plates P1, P2, P3 and P4 as shown in Fig. 12.1.
On Fig. 12.1, the beam is shown as the dot at the centre.
Q
P1
P2
P4
P3
Fig. 12.1
(a) Cathode rays are produced by thermionic emission.
What is the name of the particles which make up cathode rays?
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 (UCLES) 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.
University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.
This document consists of 15 printed pages and 1 blank page.
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education
PHYSICS 0625/02
Paper 2 CoreOctober/November 2006
1 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use a soft pencil for any diagrams, graphs or rough working.Do not use staples, paper clips, highlighters, glue or correction fluid.
Answer all questions.You may lose marks if you do not show your working or if you do not use appropriate units.Take the weight of 1 kg to be 10 N (i.e. acceleration of free fall = 10 m/s2).
At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.
Centre Number Candidate Number Name
For Examiner’s Use
1 A worker on the production line in a factory is making brackets. An inspector times theworker whilst he makes 5 brackets. To start, the stopwatch is set to zero.
After 5 brackets have been made, the stopwatch is as shown in Fig. 1.1.
Fig. 1.1
(a) State the reading on the stopwatch.
reading = .......................... s [1]
(b) Calculate the time taken to make 1 bracket.
time taken = .......................... s [2]
(c) The worker has a target of making 300 brackets per hour.
Does the worker meet his target? Tick one box and show the working which led you toyour answer.
(b) A branch from the tree falls into some shallow water in a pond nearby. The branch setsup a wave. The wave moves to the left a distance of 3.0 m before hitting the side of amoored boat and reflecting back again.
Fig. 7.2
The wave takes 5.0 s to travel from AB to the boat and back to AB.
Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Everyreasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, thepublisher will be pleased to make amends at the earliest possible opportunity.
University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department ofthe University of Cambridge.
16
0625/02/O/N/06
This document consists of 15 printed pages and 1 blank page.
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education
PHYSICS 0625/02
Paper 2 CoreOctober/November 2005
1 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen in the spaces provided on the Question Paper.You may use a soft pencil for any diagrams, graphs or rough working.Do not use staples, paper clips, highlighters, glue or correction fluid.
Answer all questions.At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.You may lose marks if you do not show your working or if you do not use appropriate units.Take the weight of 1 kg to be 10 N (i.e. acceleration of free fall = 10 m/s2).
Centre Number Candidate Number Name
If you have been given a label, look at thedetails. If any details are incorrect ormissing, please fill in your correct detailsin the space given at the top of this page.
Stick your personal label here, ifprovided.
For Examiner’s Use
1 The length of a spring is measured when various loads from 1.0 N to 6.0 N are hangingfrom it. Fig. 1.1 gives a graph of the results.
Fig. 1.1
Use the graph to find
(a) the length of the spring with no load attached,
(a) The man rolls the cupboard at a steady speed from the lorry to the house. The frictionforce in the wheels is 40 N. State the force with which the man has to push.
force = .................... N [1]
(b) The cupboard weighs 720 N. State the smallest force needed to lift the cupboard.
force = .................... N [1]
(c) The step is 0.20 m high. Calculate the work required to lift the cupboard onto the step.
work required = ..................................... [4]
(d) The man has to ask his assistant to help him lift the cupboard onto the step. Together,they lift it onto the step in 1.2 s. The men work equally hard.
Calculate the power developed by each man.
power developed = ................................ [4]
(b) The resistance of the variable resistor is slowly decreased. The reeds in the reed relayclose. Fig. 6.2(a) shows how the current in the coil changes with time.
On Fig. 6.2(b), draw a line that might show how the current in the motor changes withtime as the variable resistor is adjusted. [4]
7 (a) The filament of a lamp is placed at the principal focus of a lens, as shown in Fig. 7.1.
Fig. 7.1
On Fig. 7.1, continue the three rays through the lens and out into the air on the right ofthe lens. [1]
(b) The lens in Fig. 7.2 has a focal length of 2.0 cm.
Fig. 7.2
On Fig. 7.2,
(i) mark and label the positions of the principal focus on the left of the lens and theprincipal focus on the right of the lens, [1]
(ii) carefully draw a ray from the top of the object, parallel to the axis, through the lensand continue it until it reaches the edge of the squared area, [1]
(iii) carefully draw a ray from the top of the object, which travels parallel to the axisafter it has passed through the lens, [1]
(ii) State what, if anything, happens when the end A is held over one end of
1. an unmagnetised iron bar, ................................................................................
2. an uncharged plastic rod. ........................................................................... [2]
(b) Fig. 8.2 shows four identical plotting compasses placed around a bar magnet wherethe magnetic field of the surroundings can be ignored. The pointer has only beendrawn on one plotting compass.
Fig. 8.2
On Fig. 8.2, draw the pointers on the other three plotting compasses to indicate thedirections of the magnetic field of the bar magnet in those three places. [3]
Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Everyreasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, thepublisher will be pleased to make amends at the earliest possible opportunity.
University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a departmentof the University of Cambridge.
16
0625/02/O/N/05
This document consists of 15 printed pages and 1 blank page.
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONSInternational General Certificate of Secondary Education
PHYSICS 0625/02
Paper 2 TheoryOctober/November 2004
1 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen in the spaces provided on the Question Paper.You may use a soft pencil for any diagrams, graphs or rough working.Do not use staples, paper clips, highlighters, glue or correction fluid.
Answer all questions.At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.You may lose marks if you do not show your working or if you do not use appropriate units.Take the weight of 1 kg to be 10 N (i.e. acceleration of free fall = 10 m/s2).
Centre Number Candidate Number Name
If you have been given a label, look at thedetails. If any details are incorrect ormissing, please fill in your correct detailsin the space given at the top of this page.
1 Fig. 1.1 shows the top part of a measuring cylinder containing some liquid.
Fig. 1.1
(a) What is the volume of liquid in the measuring cylinder?
volume = .............................cm3 [1]
(b) Fig. 1.1 indicates four ways the observer’s eye could look when taking the reading fromthe measuring cylinder. Put a circle around the eye position that gives the correctreading. [1]
(c) In order to fill the measuring cylinder up to the 100 cm3 mark, 80 drops of the liquid areadded to the liquid already in the measuring cylinder.Calculate the average volume of one drop.
average volume of a drop = ............................cm3 [4]
3 A packaging company purchases corrugated cardboard boxes in which to pack its goods.The boxes are not made up when they are delivered, but are flat, as shown in Fig. 3.1.
Fig. 3.1
(a) A bundle of these boxes measures 0.60 m x 0.50 m x 0.20 m and has a mass of 7.2 kg.
(i) Calculate the volume of the bundle of boxes.
volume = .....................................[3]
(ii) Calculate the density of the corrugated cardboard.
density = .....................................[4]
(b) Corrugated cardboard is made up of 3 sheets of thick paper stuck together. Fig. 3.2shows an enlarged view of the edge of a sheet of corrugated cardboard.
Fig. 3.2
(i) Here is an incomplete sentence about the paper.
The density of the paper is ................................... that of the corrugated cardboard.
Which of the words below correctly complete the sentence? Tick one box.
5 In order to observe Brownian motion, some smoke is mixed with air trapped in a small glassbox. The box is strongly illuminated from the side, and the smoke is viewed from abovethrough a microscope. This is illustrated in Fig. 5.1.
Fig. 5.1
(a) Describe what is seen when the microscope is focussed on the smoke particles.
7 A girl is walking along a path 1600 m from the rock-face of a quarry (a place where stone isobtained).
Fig. 7.1
(a) The quarry workers set off an explosion at X to break up some rock. The girl measuresthe time interval between seeing the flash and hearing the bang.The time is 5.0 s.
(i) Calculate the speed of the sound.
speed of sound = ………….………..m/s [3]
(ii) State what assumption you have made in your working in (i).
8 Two light conducting balls A and B are hanging side by side, as shown in Fig. 8.1.
Fig. 8.1
A and B are given a series of different charges, as indicated in the table below.In the third column of the table, write what is seen to happen in each case.Use the words repulsion or attraction or nothing, as appropriate.
12 (a) A small pin is fixed to the edge of a bench. A triangular piece of card with a small hole ineach corner is hung on the pin from corner A and allowed to settle, as shown inFig. 12.1. A plumb-line is then hung from the pin and the vertical line AP is marked onthe card.
Fig. 12.1
This procedure is then repeated with the card hanging from C and the vertical line CQ ismarked.After this, the card is as shown in Fig. 12.2.
Fig. 12.2
On Fig. 12.2,
(i) draw the vertical line that would be obtained if the card were hung from B,
(ii) clearly mark the centre of mass of the card using a dot labelled G. [2]
Every reasonable effort has been made to trace all copyright holders where the publishers (i.e. UCLES) are aware that third-party material has been reproduced.The publishers would be pleased to hear from anyone whose rights they have unwittingly infringed.
University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department ofthe University of Cambridge.