Cambridge IGCSE Science - Combined 0653 — 2003 May/June Paper 1 · Variant 1

This document consists of 19 printed pages and 1 blank page. MML 3541 6/02 S41638/4 © CIE 2003 [Turn over CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education COMBINED SCIENCE 0653/01 Paper 1 Multiple Choice May/June 2003 45 minutes Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C, and D. Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. A copy of the Periodic Table is printed on page 20. Centre Number Candidate Number Name UNIVERSITY of CAMBRIDGE Local Examinations Syndicate www.XtremePapers.com

1 Which pair of features is found in plant cells but not in animal cells? 2 The diagram shows a small part of a plant cell greatly magnified. Which part controls what enters and leaves the cell? 3 When an enzyme molecule has catalysed a chemical reaction in a cell, what happens to it? A It acts as a catalyst again. B It is denatured. C It is digested. D It is used up by the reaction. A B C D plant cell 2 0653/01/M/J/03 A B C D cell membrane cell sap cell wall nucleus cell sap cell wall nucleus cell membrane

4 There are four stages in testing a leaf for starch. 1 soften in hot water 2 stain with iodine 3 boil in alcohol 4 boil in water What is the correct order for these stages? 5 The diagram shows some cells in a leaf of a green plant. In which layer of cells does most photosynthesis occur? sunlight gases enter A B C D 3 0653/01/M/J/03 [Turn over A B C D 1 1 3 4 2 4 1 3 3 3 2 1 4 2 4 2

6 The diagram shows a section through a human tooth. Which part is made of the hardest material? 7 The pie-charts show the compositions of four different foods. Which food contains the most energy? A B C D 4 0653/01/M/J/03 carbohydrates fat protein water A B C D

8 The diagram shows apparatus that can be used to demonstrate that the air breathed out by a person contains more carbon dioxide than the air breathed in. The person breathes in and out at X. Where does air enter and leave the apparatus? 9 Which cells destroy harmful microorganisms in the blood? A goblet cells B platelets C red blood cells D white blood cells limewater X Y Z 5 0653/01/M/J/03 [Turn over A B C D air enters at Y Y Z Z air leaves at Y Z Y Z

10 The diagram shows part of the human circulatory system. Which structure carries oxygenated blood? head lungs heart liver gut kidney legs A B C D 6 0653/01/M/J/03

11 The drawing shows a plant in a container of water. There is a layer of oil on top of the water that stops the water evaporating. The apparatus weighs 300 g. After two hours it weighs 296 g. What is the rate of transpiration? A 150 g water / hour B 148 g water / hour C 4 g water / hour D 2 g water / hour 12 Which organ releases insulin when the blood sugar level is too high? A kidney B liver C pancreas D stomach water oil 7 0653/01/M/J/03 [Turn over

13 The diagram shows a section through a flower. Where do the following occur? 14 Which process takes place when a sperm joins with an ovum? A fertilisation B intercourse C menstruation D sterilisation 3 1 2 4 8 0653/01/M/J/03 A B C D pollination 1 2 3 4 fertilisation 2 4 1 3

15 Which diagrams show the bonding in the molecules of nitrogen and ethene? A B C D 16 The reaction of zinc and sulphur to form zinc sulphide is exothermic. Which information in the table is correct? 9 0653/01/M/J/03 [Turn over A B C D elements in a mixture of zinc and sulphur easy to separate easy to separate difficult to separate difficult to separate elements in zinc sulphide difficult to separate easy to separate difficult to separate easy to separate energy change during the reaction heat given out heat taken in heat taken in heat given out N N H H H H C C C C nitrogen ethene H H H H H H C C H H H H H H H H H H C C — N N — N N N N

17 Which substance is an ionic compound? 18 Bromine is in the same group of the Periodic Table as chlorine. What are the colour and formula of hydrobromic acid likely to be? 19 Which equation shows an insoluble base reacting with an acid? A barium chloride + sulphuric acid →barium sulphate + hydrochloric acid B magnesium oxide + hydrochloric acid →magnesium chloride + water C sodium carbonate + hydrochloric acid →sodium chloride + water + carbon dioxide D zinc + sulphuric acid →zinc sulphate + hydrogen 20 Flame tests are carried out on calcium chloride and copper(II) chloride. What are the colours of the flames? 10 0653/01/M/J/03 A B C D melting point high high low low electrical conductivity when melted high low high low A B C D colour brown brown colourless colourless formula HOBr HBr HOBr HBr A B C D calcium chloride red blue-green lilac yellow copper(II) chloride blue-green lilac yellow red

21 In an experiment, 100 cm3 of dry air are passed over heated copper turnings until there is no further change in volume (at r.t.p.). What volume of gas remains? A 89 cm3 B 79 cm3 C 21 cm3 D 11 cm3 22 A mixture of copper, magnesium and zinc is added to an excess of dilute sulphuric acid. The resulting mixture is then filtered. What is the solid left behind? A copper and magnesium B copper only C magnesium and zinc D zinc only 23 Which statement best describes how and why drinking water is sterilised? solid solution 11 0653/01/M/J/03 [Turn over A B C D how boiled boiled chlorine added chlorine added why bacteria cannot multiply kills bacteria bacteria cannot multiply kills bacteria

24 In which experiment does the metal act as a catalyst? A B C D heat hydrogen copper(II) oxide + hydrogen copper(II) oxide copper + water platinum air aqueous ammonia ammonia + oxygen nitrogen oxide + water magnesium air magnesium + oxygen magnesium oxide sulphuric acid zinc zinc + sulphuric acid zinc sulphate + hydrogen 12 0653/01/M/J/03

25 The diagram shows an experiment to investigate the effect of heat on potassium nitrate. The glowing splint bursts into flame. What happens to the potassium nitrate when it is heated? 26 The description below of a plastic is incomplete. To make a plastic, ………1……… of a ………2……… combine to form a long chain ………3……… Which words correctly complete the gaps? heat potassium nitrate glowing splint 13 0653/01/M/J/03 [Turn over A B C D type of reaction combustion combustion thermal decomposition thermal decomposition gas produced hydrogen oxygen hydrogen oxygen A B C D gap 1 atoms atoms molecules molecules gap 2 monomer polymer monomer polymer gap 3 polymer monomer polymer monomer

27 Why is water often used to extinguish fires? A The boiling point of water is 100 °C. B Water is a compound containing oxygen and hydrogen. C Water removes heat from the fire. D Water reacts with most fuels. 28 A glass tank contains some water. The length QR and the width RS of the tank are known. What other distance needs to be measured in order to be able to calculate the volume of the water? A ST B SV C TU D TV 29 A tunnel has a length of 50 km. A car takes 20 min to travel between the two ends of the tunnel. What is the average speed of the car? A 2.5 km / h B 16.6 km / h C 150 km / h D 1000 km / h water Q R S T V U 14 0653/01/M/J/03

30 Three children, X, Y and Z, are using a see-saw to compare their weights. Which line in the table shows the correct order of the children’s weights? 31 A spring is suspended from a stand. Loads are added and the extensions are measured. Which graph shows the result of plotting extension against load? 0 0 extension load A 0 0 extension load B 0 0 extension load C 0 0 extension load D spring stand loads rule X Y Y Z X Z 15 0653/01/M/J/03 [Turn over A B C D heaviest ←→ lightest X X Y Y Y Z X Z Z Y Z X

32 What is the source of the energy converted by a hydro-electric power station? A hot rocks B falling water C oil D waves 33 When water evaporates, some molecules escape. Which molecules escape? A the molecules at the bottom of the liquid with less energy than others B the molecules at the bottom of the liquid with more energy than others C the molecules at the surface with less energy than others D the molecules at the surface with more energy than others 34 A person holds a glass beaker in one hand and fills it quickly with hot water. It takes several seconds before his hand starts to feel the heat. Why is there this delay? A Glass is a poor conductor of heat. B Glass is a good conductor of heat. C Water is a poor conductor of heat. D Water is a good conductor of heat. 35 A woman tunes her radio to a station broadcasting on 200 m. What does the 200 m tell her about the radio wave? A its amplitude B its frequency C its speed D its wavelength 16 0653/01/M/J/03

36 Which diagram correctly shows rays passing through a camera lens? 37 When the potential difference (p.d.) across a piece of resistance wire is changed, the current through the wire also changes. The temperature of the wire is kept the same. Which graph shows how the p.d. and current are related? 0 0 p.d. A 0 0 p.d. B 0 0 p.d. C 0 0 p.d. D current current current current camera film image lens object A camera film image lens object C camera film image lens object B camera film image lens object D 17 0653/01/M/J/03 [Turn over

38 Two faulty ammeters and two perfect ammeters are connected in series in the circuit shown. The readings on the ammeters are A1 2.9 A A2 3.1 A A3 3.1 A A4 3.3 A Which two ammeters are faulty? A A1 and A2 B A1 and A4 C A2 and A3 D A3 and A4 39 The diagram shows a transformer with an alternating voltage of 100 V applied to the primary coil. What is the voltage produced across the secondary coil? A 50 V B 100 V C 200 V D 8000 V 40 Which type of radiation can be stopped by a sheet of paper? A α-particles B β-particles C γ-rays D X-ray primary coil secondary coil 100V (40 turns) (80 turns) A1 A2 A3 A4 18 0653/01/M/J/03

20 0653/01/M/J/03 DATA SHEET The Periodic Table of the Elements The volume of one mole of any gas is 24 dm3 at room temperature and pressure (r.t.p.). *58-71 Lanthanoid series †90-103 Actinoid series Key a = relative atomic mass X = atomic symbol b = proton (atomic) number Group I 7 Li Lithium 3 9 Be Beryllium 4 23 Na Sodium 11 24 Mg Magnesium 12 39 K Potassium 19 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 73 Ge Germanium 32 28 Si Silicon 14 12 C Carbon 6 75 As Arsenic 33 31 P Phosphorus 15 14 N Nitrogen 7 79 Se Selenium 34 32 S Sulphur 16 16 O Oxygen 8 80 Br Bromine 35 35.5 Cl Chlorine 17 19 F Fluorine 9 84 Kr Krypton 36 40 Ar Argon 18 20 Ne Neon 10 4 He Helium 2 85 Rb Rubidium 37 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 54 133 Cs Caesium 55 137 Ba Barium 56 139 La Lanthanum 57 * 178 Hf Hafnium 72 181 Ta Tantalum 73 140 Ce Cerium 58 a X b 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 103 141 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 71 184 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 87 226 Ra Radium 88 227 Ac Actinium 89 † 1 H Hydrogen 1 II III IV V VI VII 0