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同学少年国际教育


同学少年(iStar)国际教育

A-level/SAT/AP/IB 国际课程专家

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education

READ THESE INSTRUCTIONS FIRST

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Answer all questions. Electronic calculators may be used. 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. This document consists of 20 printed pages.
DC (SJF/SW) 58287/5 ? UCLES 2013

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 pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid. DO NOT WRITE IN ANY BARCODES.

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For Examiner’s Use 1 2 3 4 5 6 7 8 9 10 11 Total [Turn over

* 5 6 3 8 7 4 8 9 6 2 *

PHYSICS Paper 3 Extended Candidates answer on the Question Paper. No Additional Materials are required.

0625/32
May/June 2013 1 hour 15 minutes

010-62681519

同学少年(iStar)国际教育 2 1

A-level/SAT/AP/IB 国际课程专家

Fig. 1.1 shows a side view of a large tank in a marine visitor attraction.

For Examiner’s Use

sea-water

viewing panel M tank

The tank is 51 m long and 20 m wide. The sea-water in the tank is 11 m deep and has a density of 1030 kg / m3. (a) Calculate the mass of water in the tank.

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Calculate the depth of M below the surface of the water.
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(b) The pressure at point M, halfway down the large viewing panel, is 60 kPa more than atmospheric pressure.

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mass = ................................................. [3] depth = ................................................. [2] 010-62681519

Fig. 1.1 (not to scale)

同学少年(iStar)国际教育 3 (c) The viewing panel is 32.8 m wide and 8.3 m high.

A-level/SAT/AP/IB 国际课程专家

Calculate the outward force of the water on the panel. Assume that the pressure at M is the average pressure on the whole panel.

For Examiner’s Use

force = ................................................. [2] [Total: 7]

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[Turn over 010-62681519

同学少年(iStar)国际教育 4 2 Fig. 2.1 shows the extension-load graph for a spring.

A-level/SAT/AP/IB 国际课程专家

For Examiner’s Use

extension

P

0

0 load Fig. 2.1

(a) (i)

Name the law obeyed by the spring from the origin to P.

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(ii)
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.............................................................................................................................. [1]

Describe two features of the graph which show that the law is obeyed. 1. ...............................................................................................................................

2. ............................................................................................................................... [2]

(b) On Fig. 2.1, sketch a possible continuation of the graph when the spring is loaded beyond the limit of proportionality. [1] [Total: 4]

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Point P is the limit of proportionality.

同学少年(iStar)国际教育 5 3

A-level/SAT/AP/IB 国际课程专家

Water molecules evaporate from a puddle and escape to the atmosphere. Water molecules also escape to the atmosphere from water boiling in a kettle. (a) State two ways in which evaporation differs from boiling. 1. ...................................................................................................................................... .......................................................................................................................................... 2. ...................................................................................................................................... .......................................................................................................................................... [2] (b) This part of the question is about an experiment to determine the specific latent heat of vaporisation of water. (i) Suggest apparatus that will provide thermal energy (heat) and state the readings needed to determine the amount of thermal energy provided. apparatus .................................................................................................................

For Examiner’s Use

..................................................................................................................................

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(ii)
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readings ................................................................................................................... .................................................................................................................................. .................................................................................................................................. [2]

Suggest apparatus required for determining the mass of liquid vaporised and state the readings needed to determine that mass. apparatus ................................................................................................................. ..................................................................................................................................

readings ................................................................................................................... .................................................................................................................................. .................................................................................................................................. [2] [Total: 6]

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[Turn over 010-62681519

同学少年(iStar)国际教育 6 4 A rocket, initially at rest on the ground, accelerates vertically.

A-level/SAT/AP/IB 国际课程专家

It accelerates uniformly until it reaches a speed of 900 m / s after 30 s. After this period of uniform acceleration, the rocket engine cuts out. During the next 90 s, the upward speed of the rocket decreases uniformly to zero. (a) On Fig. 4.1, plot a speed-time graph for the rocket for the first 120 s of its flight.

For Examiner’s Use

speed m/s

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time / s Fig. 4.1 (b) Using the graph, (i) calculate the acceleration during the first 30 s,
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[4] acceleration = .................................................. [2] 010-62681519

同学少年(iStar)国际教育 7 (ii)

A-level/SAT/AP/IB 国际课程专家

determine the height reached by the rocket after 120 s.

For Examiner’s Use

height reached = .................................................. [2] [Total: 8]

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[Turn over 010-62681519

同学少年(iStar)国际教育 8 5

A-level/SAT/AP/IB 国际课程专家

(a) Fig. 5.1 shows an aerial view of wavefronts passing from the open sea into an outer harbour.

For Examiner’s Use

open sea

outer harbour wall

direction of wave travel

outer harbour

inner harbour wall inner harbour

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Fig. 5.1 (i) The wavefronts in the outer harbour are curving at their ends. Name the process that is occurring at the entrance to the harbour. (ii)
? UCLES 2013 0625/32/M/J/13

.............................................................................................................................. [1]

On Fig. 5.1, carefully complete the wave pattern as the wavefronts progress through the outer harbour and into the inner harbour. Show the rest of the wave pattern in the outer harbour and three wavefronts in the inner harbour. [3]

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同学少年(iStar)国际教育 9

A-level/SAT/AP/IB 国际课程专家

(b) Fig. 5.2 shows an aerial view of wavefronts in deep water approaching a region of shallow water where they travel more slowly.

For Examiner’s Use

deep water

shallow water

direction of wave travel

interface

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(i) (ii)
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Name the process that occurs as the wavefronts pass from deep to shallow water. .............................................................................................................................. [1]

Complete Fig. 5.2 to show possible positions of the five wavefronts in the shallow water. [2] [Total: 7]

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Fig. 5.2 [Turn over 010-62681519

同学少年(iStar)国际教育 10 6

A-level/SAT/AP/IB 国际课程专家

(a) Fig. 6.1 shows two rays from a point object P incident on a water surface. An observer sees the image of P produced by reflection at the surface of the water.

For Examiner’s Use

P

air water

water surface

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air water surface water Q Fig. 6.2
? UCLES 2013 0625/32/M/J/13

On Fig. 6.1, draw the reflected rays and complete the diagram to locate the position of the image. Label the position of the image I. [2]

(b) Fig. 6.2 shows two rays from a point object Q incident on another water surface. An observer sees the image of Q produced by refraction at the surface of the water.

On Fig. 6.2, draw possible refracted rays and complete the diagram to locate a possible position of the image. Label the position of the image J. You do not need to calculate any angles. [2]

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Fig. 6.1 010-62681519

同学少年(iStar)国际教育 11 (c) The refractive index of water is 1.33. Calculate the critical angle.

A-level/SAT/AP/IB 国际课程专家

For Examiner’s Use

critical angle = .................................................. [2] (d) Describe, with a diagram, a medical use of optical fibres.

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.......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... ...................................................................................................................................... [3] [Total: 9]

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[Turn over 010-62681519

同学少年(iStar)国际教育 12 7

A-level/SAT/AP/IB 国际课程专家

The solar charger shown in Fig. 7.1 is used to charge portable electronic devices in a part of the world without any other electricity supply. solar panels

For Examiner’s Use

Fig. 7.1 The dimensions of each of the solar panels are 0.25 m × 0.20 m. The solar power incident on 1.0 m2 of flat ground in this part of the world is 260 W. (a) Calculate the total solar power incident on the two panels of the charger.

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(b) The output of the charger is 0.95 A at 20 V. Calculate the efficiency of the charger.
? UCLES 2013 0625/32/M/J/13

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solar power = ................................................. [2] efficiency = .................................................. [3] 010-62681519

同学少年(iStar)国际教育 13

A-level/SAT/AP/IB 国际课程专家

(c) Three devices A, B and C are connected together and then connected to the 20 V charger. The potential difference (p.d.) across A is measured as 14 V, across B it is 14 V and across C it is 6 V. Complete Fig. 7.2 to show the arrangement of the devices connected to the charger. Draw devices B and C as similar boxes to the box shown for device A. output from charger 20 V

For Examiner’s Use

device A

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(d) Two other devices, D and E, have resistances of 20 Ω and 30 Ω.
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Calculate the total resistance of D and E when they are connected in parallel.

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Fig. 7.2 [2] total resistance = .................................................. [2] [Total: 9] [Turn over 010-62681519

同学少年(iStar)国际教育 14 8

A-level/SAT/AP/IB 国际课程专家

Fig. 8.1 shows a vertical current-carrying wire passing through a card at point X.

For Examiner’s Use

X

Y

Z

card

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Fig. 8.1
? UCLES 2013 0625/32/M/J/13

(a) On Fig. 8.1, sketch on the card the pattern of the magnetic field produced by the current in the wire. The detail of your sketch should suggest the variation in the strength of the field. Show the direction of the field with arrows. [3]

(b) Using your knowledge of investigating the magnetic field around a bar magnet, suggest an experiment or experiments to confirm that you have drawn the correct pattern and direction in (a). .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... [4]

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current direction 010-62681519

同学少年(iStar)国际教育 15

A-level/SAT/AP/IB 国际课程专家

(c) A second current-carrying wire is inserted vertically through the card at Y. Suggest why there is now a force on the wire at X. .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... ...................................................................................................................................... [2] (d) The wire at Y is moved to Z. It still carries the same current. Tick the appropriate box to indicate whether the force on the wire at X is now smaller, greater or the same. smaller

For Examiner’s Use

same

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[1] [Total: 10] [Turn over 010-62681519

greater

同学少年(iStar)国际教育 16 9

A-level/SAT/AP/IB 国际课程专家

There is an alternating current in the primary coil of the transformer shown in Fig. 9.1. soft-iron core

For Examiner’s Use

primary coil

secondary coil Fig. 9.1

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continually increasing and decreasing continually increasing continually decreasing soft-iron core secondary coil (b) State and explain the effect on the output from the secondary coil of (i) increasing the voltage across the primary coil,
? UCLES 2013 0625/32/M/J/13

output ....................................................................................................................... explanation ............................................................................................................... .................................................................................................................................. .................................................................................................................................. .................................................................................................................................. [2]

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magnetic field zero [2] 010-62681519

(a) Tick one box in each line of the table that best describes the magnetic field in the core and the magnetic field in the secondary coil.

同学少年(iStar)国际教育 17 (ii)

A-level/SAT/AP/IB 国际课程专家

replacing the alternating current in the primary coil with direct current from a battery. output ....................................................................................................................... explanation ............................................................................................................... .................................................................................................................................. .................................................................................................................................. .................................................................................................................................. [2] [Total: 6]

For Examiner’s Use

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[Turn over 010-62681519

同学少年(iStar)国际教育 18 10 There are two stable, naturally occurring isotopes of hydrogen.

A-level/SAT/AP/IB 国际课程专家

Common hydrogen (hydrogen-1) has a proton number of 1 and a nucleon number of 1. Hydrogen-2 (deuterium) has a nucleon number of 2. There is also a radioactive isotope of hydrogen called tritium (hydrogen-3), with a nucleon number of 3. (a) Complete the table for neutral atoms of these isotopes. hydrogen-1 hydrogen-2 (deuterium) hydrogen-3 (tritium)

For Examiner’s Use

number of protons number of neutrons

(b) Two samples of tritium are stored in aluminium containers of different thickness.

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(i) (ii) Explain your answer to (b)(i). (i) Name this process. (ii)
? UCLES 2013 0625/32/M/J/13

Sample 1 is in a container of thickness 0.5 mm and radiation can be detected coming through the container. Sample 2 is in a container of thickness 5 mm and no radiation comes through. State the type of radiation coming through the container of Sample 1. .............................................................................................................................. [1]

.................................................................................................................................. .................................................................................................................................. .................................................................................................................................. .............................................................................................................................. [2]

(c) Under conditions of extremely high temperature and pressure, as in the interior of the Sun, hydrogen nuclei can join together.

.............................................................................................................................. [1] State whether energy is released, absorbed or neither released nor absorbed during this reaction. .............................................................................................................................. [1]

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[3] 010-62681519

number of electrons

同学少年(iStar)国际教育 19

A-level/SAT/AP/IB 国际课程专家

(d) When a nucleus of a certain isotope of uranium is bombarded by a suitable neutron, it splits into two smaller nuclei and energy is released. Name this process. ...................................................................................................................................... [1] [Total: 9]

For Examiner’s Use

Turn over for Question 11

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[Turn over 010-62681519

同学少年(iStar)国际教育 20

A-level/SAT/AP/IB 国际课程专家

11 Fig. 11.1 shows the main components of a cathode-ray oscilloscope. IOXRUHVFHQW VFUHHQ

For Examiner’s Use

KHDWHU FDWKRGH JULG

EHDP DQRGH <SODWHV ;SODWHV YDFXXP V\VWHP

Fig. 11.1 (a) (i) Name the particles that are in the beam. .............................................................................................................................. [1] (ii) Explain the purpose of the heater.

.............................................................................................................................. [1] (iii) Explain why there is a vacuum in the tube.

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.................................................................................................................................. .............................................................................................................................. [1]

(b) When no potential difference (p.d.) is applied across either the X-plates or the Y-plates, a spot is seen in the centre of the fluorescent screen. Describe the p.d.s applied to the X-plates and to the Y-plates when the spot moves up and down in the centre of the screen. X-plates ............................................................................................................................

Y-plates ............................................................................................................................ [2] [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.

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