Cambridge IGCSE Physical Science 0652 — 2006 Oct/Nov Paper 3 · Variant 1

Centre Number Candidate Number Name UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education PHYSICAL SCIENCE 0652/03 Paper 3 Extended October/November 2006 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, tables or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. A copy of the Periodic Table is printed on page 20. 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. For Examiner’s Use 1 2 3 4 5 6 7 8 Total This document consists of 17 printed pages and 3 blank pages. IB06 11_0652_03/2RP  UCLES 2006 [Turn over www.XtremePapers.com

2 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 1 (a) A spring is loaded with a mass of 250 g and comes to rest as shown in Fig. 1.1. Mark on Fig. 1.1 the size and direction of the forces acting on the mass in this position. g = 10 N / kg [4] Fig. 1.1 (b) Masses are added to the spring and it stretches beyond its limit of proportionality. (i) Sketch, on Fig. 1.2, the shape of the graph you would expect. [2] load extension 0 0 Fig. 1.2 (ii) On your graph, clearly label the limit of proportionality. [1]

3 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use (c) The spring is loaded with a 250 g mass. The mass is raised 8.0 cm above its normal rest position and released. (i) Calculate the additional gravitational potential energy given to the mass in raising it 8.0 cm. additional gravitational potential energy = [2] (ii) Calculate the maximum speed that the mass gains after it has been released. maximum speed = [3]

4 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 2 Fig. 2.1 shows the production of iron in a blast furnace. waste gases raw materials firebrick lining air slag molten iron Fig. 2.1 (a) Raw materials loaded into the top of the furnace are iron ore, coke and limestone. In the furnace iron(III) oxide, Fe2O3, reacts with carbon monoxide to produce iron metal. (i) State the name of an ore containing iron(III) oxide. [1] (ii) Explain how carbon monoxide is formed in the blast furnace. [2] (iii) Write a balanced equation for the reaction between carbon monoxide and iron(III) oxide. [2]

5 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use (b) An ore used in a blast furnace contains 80% by mass of iron(III) oxide, Fe2O3. The remaining 20% does not contain any iron or iron compounds. What mass of iron can be extracted from each tonne of this ore? Show your working. mass = tonne [4]

6 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 3 (a) Fig. 3.1 shows one wave property demonstrated by water waves in a ripple tank. The figure is drawn 1/5th full size and the frequency of the waves is 2 Hz. source of wave mirror ripple tank scale 1:5 Fig. 3.1 (i) Name the property illustrated by this experiment. [1] (ii) Use Fig. 3.1 to calculate the wavelength of the wave in the ripple tank. wavelength = [2] (iii) Calculate the speed of the water waves. speed = [2]

7 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use (b) Fig. 3.2 and Fig. 3.3 show a second property of waves demonstrated by another experiment in a ripple tank. narrow slit Fig. 3.2 wide slit Fig. 3.3 (i) Name the property illustrated by this experiment. [1] (ii) Different widths of slits are used in the two parts of the experiment. Describe the effect this has on the waves. [2]

8 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 4 A little metal powder is added to an aqueous solution of a metal salt. Any change to the appearance of the solid is noted. The experiment is repeated with different metals and metal salt solutions. Results for these experiments are shown in Fig. 4.1. aqueous solution of metal salt metal powder copper(II) sulphate iron(II) sulphate magnesium sulphate aluminium sulphate aluminium forms a red- brown solid forms a dark grey solid no change no change copper no change no change no change no change iron forms a red- brown solid no change no change no change magnesium forms a red- brown solid forms a dark grey solid no change forms a dark grey solid Fig. 4.1 (a) (i) A red-brown solid is formed when magnesium is added to aqueous copper(II) sulphate. Name this solid. [1] (ii) Write a balanced equation for the reaction that takes place between magnesium and copper(II) sulphate. [2] (b) Use the information in Fig. 4.1 to place the four metals in order of reactivity. most reactive least reactive [3]

9 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use (c) (i) When left in damp conditions iron rusts but aluminium does not show any change. Explain this difference. [2] (ii) Suggest how another metal can be used to prevent iron from rusting. [2]

10 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 5 (a) Fig. 5.1 illustrates a simple alternating current generator. N S output terminals magnet slip rings carbon brush coil axle Fig. 5.1 (i) Name the principle used to explain how a generator works. [1] (ii) State three ways of increasing the voltage generated. 1. 2. 3. [3] (iii) Explain why the direction of the voltage reverses each half revolution of the coil. [2]

11 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use (b) (i) Draw a circuit that could be connected to the output terminals to produce a direct current. Label your components. output terminals [2] (ii) State the difference between the direction of conventional current and the direction of electron flow. [1]

12 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 6 (a) Fig. 6.1 shows the arrangement of atoms in diamond and graphite. diamond graphite Fig. 6.1 (i) Describe two differences in the properties of diamond and graphite. 1 2 [2] (ii) Use the structures in Fig. 6.1 to explain one of the differences you described in (a). [2] (b) Fig. 6.2 shows the arrangement of particles in a metal. + + + + + + + + + + + + + + + + + e– e– e– e– e– e– e– e– e– e– e– e– e– e– e– e– e– Fig. 6.2

13 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use Use information from Fig. 6.2 to help explain the following facts about this metal. (i) The metal conducts electricity. [2] (ii) The metal is malleable. [2] (c) The metal is mixed with another metal to make an alloy. (i) Suggest how the malleability of the alloy will compare with that of the metal in Fig. 6.2. [1] (ii) Explain your suggestion. [2]

14 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 7 Fig. 7.1 shows a refrigerator in which a liquid absorbs thermal energy from the cold compartment and evaporates. As the vapour is compressed by the pump, work is done on it. The vapour condenses, giving out thermal energy to the surroundings through the cooling fins on the back of the refrigerator. cold compartment vapour liquid pump vapour cooling fins liquid Fig. 7.1 (a) Explain the difference between boiling and evaporation. [3] (b) Explain why the pump compresses the vapour much more than it could compress a liquid. [2]

15 © UCLES 2006 0652/03/O/N/06 [Turn over For Examiner's Use (c) Explain the effect that a refrigerator has on the temperature of the air surrounding it. [1] (d) The pump is rated at 220 V, 110W. (i) Calculate the working current of the pump. Show your working. current = [3] (ii) Calculate the working resistance of the pump. resistance = [2]

16 © UCLES 2006 0652/03/O/N/06 For Examiner's Use 8 Methanol, CH3OH, and ethanol, C2H5OH, belong to the homologous series of alcohols. (a) What is meant by the term homologous series? [2] (b) Ethanol is manufactured from ethene. (i) How is this process carried out? [2] (ii) Write an equation for the process. [1] (iii) Name another way that ethanol is made. [1] (iv) State one industrial use of ethanol. [1] (c) The atoms in methanol, CH3OH, are joined by covalent bonds. Draw a diagram to show the electron arrangement in methanol. Show only outer shell electrons in your diagram. [3]

19 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 University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge. 0652/03/O/N/06 BLANK PAGE

20 © UCLES 2006 0652/03/O/N/06 Group 140 Ce Cerium 58 141 Pr Praseodymium 59 144 Nd Neodymium 60 Pm Promethium 61 150 Sm Samarium 62 152 Eu Europium 63 157 Gd Gadolinium 64 159 Tb Terbium 65 162 Dy Dysprosium 66 165 Ho Holmium 67 167 Er Erbium 68 169 Tm Thulium 69 173 Yb Ytterbium 70 175 Lu Lutetium 71 232 Th Thorium 90 Pa Protactinium 91 238 U Uranium 92 Np Neptunium 93 Pu Plutonium 94 Am Americium 95 Cm Curium 96 Bk Berkelium 97 Cf Californium 98 Es Einsteinium 99 Fm Fermium 100 Md Mendelevium 101 No Nobelium 102 Lr Lawrencium 103 1 H Hydrogen 1 7 Li Lithium 3 23 Na Sodium 11 24 Mg Magnesium 12 40 Ca Calcium 20 45 Sc Scandium 21 48 Ti Titanium 22 51 V Vanadium 23 52 Cr Chromium 24 55 Mn Manganese 25 56 Fe Iron 26 59 Co Cobalt 27 59 Ni Nickel 28 64 Cu Copper 29 65 Zn Zinc 30 70 Ga Gallium 31 27 AAluminium 13 11 B Boron 5 12 C Carbon 6 14 N Nitrogen 7 16 O Oxygen 8 19 F Fluorine 9 28 Si Silicon 14 31 P Phosphorus 15 32 S Sulphur 16 35.5 CChlorine 17 40 Ar Argon 18 20 Ne Neon 10 4 He Helium 2 73 Ge Germanium 32 75 As Arsenic 33 79 Se Selenium 34 80 Br Bromine 35 84 Kr Krypton 36 39 K Potassium 19 88 Sr Strontium 38 89 Y Yttrium 39 91 Zr Zirconium 40 93 Nb Niobium 41 96 Mo Molybdenum 42 Tc Technetium 43 101 Ru Ruthenium 44 103 Rh Rhodium 45 106 Pd Palladium 46 108 Ag Silver 47 112 Cd Cadmium 48 115 In Indium 49 119 Sn Tin 50 122 Sb Antimony 51 128 Te Tellurium 52 127 I Iodine 53 131 Xe Xenon 54 137 Ba Barium 56 139 La Lanthanum 57 * 178 Hf Hafnium 72 181 Ta Tantalum 73 184 W Tungsten 74 186 Re Rhenium 75 190 Os Osmium 76 192 Ir Iridium 77 195 Pt Platinum 78 197 Au Gold 79 201 Hg Mercury 80 204 TThallium 81 207 Pb Lead 82 209 Bi Bismuth 83 Po Polonium 84 At Astatine 85 Rn Radon 86 Fr Francium 87 227 Ac Actinium 89 9 Be Beryllium 4 I II III IV V VI VII 0 85 Rb Rubidium 37 133 Cs Caesium 55 226 Ra Radium 88 The volume of one mole of any gas is 24 dm3 at room temperature and pressure (r.t.p.). a X b a = relative atomic mass X = atomic symbol b = proton (atomic) number Key *58-71 Lanthanoid series 90-103 Actinoid series DATA SHEET The Periodic Table of the Elements

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the October/November 2006 question paper 0652 PHYSICAL SCIENCE 0652/03 Paper 3 (Extended Theory), maximum raw mark 80 This mark scheme is published as an aid to teachers and students, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. The grade thresholds for various grades are published in the report on the examination for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2006 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. www.XtremePapers.com

Page 2 Mark Scheme Syllabus Paper IGCSE - OCT/NOV 2006 0652 3 © UCLES 2006 General Rules. Apply unit penalty only once per question. + marks can only be scored if the previous mark has been scored. In calculations, if the working/equation has not been asked for, and the answer is correct, then all the marks for that section must be scored. Words in brackets preferable but not obligatory

Page 3 Mark Scheme Syllabus Paper IGCSE - OCT/NOV 2006 0652 3 © UCLES 2006 1 (a) one arrow upwards, 1 one arrow downwards 1 2.5N 1 2.5N or same as previous one 1 4 (b) through the origin and linear to start with 1 curves upwards 1 limit of proportion clearly marked at beginning of curve 1 3 (c) (i) mgh implied or seen 1 0.2 J 1 (ii) ½ mv2 implied or seen 1 equated to candidate’s answer in (i) 1 1.3 m/s 1 5 Total 12 2 (a) (i) haematite 1 (ii) carbon burns/reacts with oxygen (producing carbon dioxide) 1 carbon dioxide is reduced by / reacts with more carbon making carbon monoxide 1 (iii) Fe2O3 + 3CO
2Fe + 3CO2 all formulae correct, 1 equation balanced +1 5 (b) mass of iron(III) oxide in ore = 1 x 80/100 = 0.8 tonne 1 Fe2O3 = 112 + 48 = 160 1 mass of iron = 0.8 x112/160 1 = 0.56 1 4 Total 9 3 (a) (i) reflection 1 (ii) 0.5 ± 0.1 (cm) 1 2.5 cm ± 0.5 from candidate’s figure 1 (iii) v = fλ seen or implied 1 5.0 cm (ecf) 1 5 (b) (i) diffraction 1 (ii) amount of diffraction/spreading/curvature depends on slit width 1 larger slit less diffraction etc. (or vv) 1 3 Total 8

Page 4 Mark Scheme Syllabus Paper IGCSE - OCT/NOV 2006 0652 3 © UCLES 2006 4 (a) (i) copper 1 (ii) Mg + CuSO4
MgSO4 + Cu (all formulae correct, 1 equation balanced +1 3 (b) magnesium, aluminium, iron, copper 3 3 (1 mark each for: Al after Mg; Fe after Al; Cu after iron) (c) (i) Al is covered with a layer of aluminium oxide 1 which protects the metal from contact with oxygen/water/air 1 (ii) coat with zinc/galvanise OR mix with chromium 1 to stop air/water reaching it/ to form stainless steel 1 4 sacrificial layer Total 10 5 (a) (i) electromagnetic induction 1 (ii) stronger magnets (not bigger) 1 faster rotation 1 more turns in the coil 1 (iii) change of flux (linkage) induces current each side cuts field upwards then downwards thus current induced in opposite directions ANY 2 1 + 1 6 (b) (i) diode or l.e.d shown 1 complete circuit with output terminals shown/load resistor included +1 (ii) opposite directions 1 3 Total 9 6 (a) (i) diamond has a higher melting point diamond is harder diamond does not conduct electricity, graphite does ANY 2 1 + 1 (ii) melting point & hardness conduction diamond strong covalent bonds diamond all electrons tightly bound 1 graphite weak (van der Waals) graphite has mobile/free electrons forces between layers 1 4 (b) (i) sea of electrons between particles/atoms/ions 1 which move to produce the electric current 1 (ii) particles/atoms/ions are in sheets/layers 1 that can slide over each other 1 4 (c) (i) alloy is less malleable 1 1 (ii) new atoms are different size to original/layers/arrangement of atoms disrupted 1 layers in alloy do not slide across each other as easily 1 2 Total 11

Page 5 Mark Scheme Syllabus Paper IGCSE - OCT/NOV 2006 0652 3 © UCLES 2006 7 (a) (i) evaporation at all temperatures – boiling at specific temperature 1 evaporation at surface – boiling in body of liquid 1 boiling the molecules have more energy than evaporation/higher energy molecules escape 1 3 (b) liquid molecules much closer together or vv 1 intermolecular forces therefore much greater in liquids or vv 1 2 (c) warms the room 1 1 (d) (i) P = VI seen or implied 1 I = 0.5 (A) 1 (ii) R = V/I seen or implied 1 440 (Ω) 1 Both units correct 1 5 Total 11 8 (a) (i) a family of compounds with similar properties/characteristics/reactions 1 due to the presence of the same functional group/general molecular formula/of form CnH (2n+1) OH 1 2 (b) (i) ethene is reacted with steam 1 at high pressure/using a catalyst +1 (ii) C2H4 + H2O
C2H5OH 1 (iii) fermentation/accept good description 1 (iv) solvent/fuel 1 5 (c) four covalent bond pairs of electrons shown on the carbon atom 1 two covalent bond pairs of electrons shown on the oxygen atom 1 four extra electrons shown on oxygen atom 1 3 (electrons do not need to be distinguished in any way) Total 10