Cambridge IGCSE Physical Science 0652 — 2003 May/June Paper 2 · Variant 1

This document consists of 12 printed pages. BR (PW) S41293/2 © CIE 2003 [Turn over CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education PHYSICAL SCIENCE 0652/02 Paper 2 May/June 2003 1 hour 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 in the spaces provided on the Question Paper. 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. 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. A copy of the Periodic Table is printed on page 12. Centre Number Candidate Number Name If you have been given a label, look at the details. If any details are incorrect or missing, please fill in your correct details in the space given at the top of this page. Stick your personal label here, if provided. For Examiner’s Use 1 2 3 4 5 6 7 8 9 10 11 Total www.XtremePapers.com

1 An isotope of silicon has the atomic notation 29 14Si. Use this information to complete the table in Fig. 1.1. Fig. 1.1 [3] 2 0652/02/M/J/03 For Examiner’s Use number of protons in nucleus of atom 14 number of neutrons in nucleus of atom total number of electrons around nucleus arrangement of these electrons in shells

3 0652/02/M/J/03 [Turn over 2 Fig. 2.1 shows an electromagnetic relay switch. Fig. 2.1 (a) (i) Explain why the contacts close when switch S is closed. … … … …[3] (ii) Explain why soft iron, not steel, is used for the core. … …[2] (b) The lamp in the circuit has a current of 4 A through it when there is a potential difference of 12 V across it. Calculate the resistance of the lamp. Show your working and state the unit of resistance. resistance = … [3] S soft iron core fixed point return spring steel armature pivot contacts 12V For Examiner’s Use

4 0652/02/M/J/03 3 (a) (i) Draw a ‘dot-cross’ diagram to describe the bonding in a molecule of methane, CH4. You need show only the outer electrons of each atom. [2] (ii) Name the type of bonding between the atoms in the methane molecule. …[1] (b) One molecule of an alcohol consists of one carbon atom, four hydrogen atoms and one oxygen atom. (i) Write the structural formula of this compound. …[2] (ii) Calculate the relative molecular mass, Mr, of this compound. [1] For Examiner’s Use

5 0652/02/M/J/03 [Turn over 4 (a) Fig. 4.1 shows parallel light entering a converging lens. Fig. 4.1 (i) Complete the diagram to show the paths of the rays of light after passing through the lens. (ii) Mark the focal length of the lens on the diagram. [3] (b) Fig. 4.2 shows a ray of light striking a mirror. Fig. 4.2 (i) Mark the angle of incidence at the mirror and label it i. (ii) Complete the path of the ray of light after it strikes the mirror. [2] normal For Examiner’s Use

5 (a) In an experiment using Group VII elements, a student adds bromine water to a colourless solution of potassium iodide. The solution changes to an orange–brown colour. In terms of the bromine reacting with the iodide ion, state the reason for this change of colour. … … …[2] (b) Complete the table in Fig. 5.1 about ethane and ethene. Fig. 5.1 [4] 6 0652/02/M/J/03 For Examiner’s Use ethane ethene diagram for structure of molecule effect of hydrocarbon on bromine water

7 0652/02/M/J/03 [Turn over 6 (a) Fig. 6.1 shows a liquid-in-glass thermometer. Fig. 6.1 (i) Name a suitable liquid to use in the thermometer. … (ii) State the reading on the thermometer. … °C (iii) Explain why a narrow capillary tube is used. … …[3] (b) The thermometer bulb is put in melting ice. (i) Explain why the liquid moves in the capillary tube. … … … (ii) Mark on the diagram the new position of the liquid. [3] 7 (a) Use the kinetic particle theory of matter to explain why energy is needed to melt a solid, at its melting point, to form a liquid. … … …[2] (b) A student puts a drop of coloured ink into water. The ink slowly spreads throughout the water. Use the kinetic particle theory of matter to explain this observation. … … …[2] –10 0 10 20 30 40 50 60 70 80 90 100 110 liquid reservoir narrow capillary tube For Examiner’s Use

8 0652/02/M/J/03 8 (a) Fig. 8.1 shows water waves going from deep water into shallow water. The arrows show the direction of the waves in the deep water. Fig. 8.1 (a) (i) Name the process illustrated. … (ii) Draw an arrow to show the direction of the waves in the shallow water. [2] (b) When the waves enter the shallow water, state what happens to (i) their speed, … (ii) their frequency, … (iii) their wavelength. …[3] wavefront deep water shallow water For Examiner’s Use

9 0652/02/M/J/03 [Turn over 9 A student is asked to prepare the salt calcium chloride from powdered limestone, calcium carbonate. (a) Name the acid she must use. …[1] (b) She adds powdered limestone gradually to the acid in a beaker, stirring frequently. A gas is produced. (i) Name the gas produced in this reaction. …[1] (ii) Describe a test to identify the gas produced in this reaction. test … result … [2] (c) She continues to add powdered limestone until no further reaction occurs. Describe how to obtain solid calcium chloride from the mixture in the beaker. … … …[2] For Examiner’s Use

10 0652/02/M/J/03 10 Fig. 10.1 shows two examples of a boy applying a force to an object. Fig. 10.1 (a) State and explain in which example the boy is doing useful work on the box. … … …[2] (b) The box has a mass of 1.8 kg. Calculate the weight of the box. (g = 10 N/kg) weight = … [2] (c) In example 1, the boy drops the box. Describe the motion of the box as it falls to the ground. … …[2] example 1 The boy holds a box in a steady position. example 2 The boy pushes the box along the bench. For Examiner’s Use

11 0652/02/M/J/03 [Turn over 11 Most fuels are chemicals which burn in air. (a) Hydrogen burns in air to form water vapour. Use this example to explain the meaning of oxidation. … … …[2] (b) In terms of energy, state why hydrogen is useful as a fuel. … …[1] (c) Explain why hydrogen is described as a clean fuel. … … …[2] For Examiner’s Use

12 0652/02/M/J/03 Group DATA SHEET The Periodic Table of the Elements 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 Al Aluminium 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 Cl Chlorine 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 Tl Thallium 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