UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level SCIENCE (PHYSICS, CHEMISTRY)

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1 UNIVERSITY OF MRIGE INTERNTIONL EXMINTIONS General ertificate of Education Ordinary Level SIENE (PYSIS, EMISTRY) 5124/01 Paper 1 Multiple hoice October/November 2005 dditional Materials: Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or is recommended) 1 hour RE TESE INSTRUTIONS FIRST Write in soft pencil. o not use staples, paper clips, highlighters, glue or correction fluid. Write your name, entre 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. nswer all questions. For each question there are four possible answers,, and. hoose 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. mark will not be deducted for a wrong answer. ny rough working should be done in this booklet. copy of the Periodic Table is printed on page 20. I05 11_5124_01/RP ULES 2005 This document consists of 17 printed pages and 3 blank pages. [Turn over

2 2 1 The diagram shows a micrometer. mm Which reading is shown? 2.23 mm 2.73 mm 3.23 mm 5.23 mm 2 Two identical balls are released from a tower at the same time. Initially at rest, one falls from the top of the tower and the other from half way. balls tower Which quantity is the same for both balls? acceleration final speed time of travel total increase in velocity 3 block of mass 20 kg is pushed along a road with a force of 30 N. The frictional force is 10 N. 30 N direction of movement 10 N road What is the acceleration of the block? 0.67 m / s m / s m / s m / s 2 ULES /01/O/N/05

3 3 4 The diagram shows a lorry. What is the best position for its centre of mass and why is it placed there? best position reason for the position as high as possible the lorry can accelerate more rapidly as high as possible the lorry is more stable as low as possible the lorry can accelerate more rapidly as low as possible the lorry is more stable 5 body moving with a speed of 30 m / s has a kinetic energy of 1800 J. What is its mass? 120 kg 60 kg 4 kg 2 kg 6 Two identical metal plates are painted, one matt white and the other matt black. These are placed at equal distances from a radiant heater as shown. The heater is turned on for five minutes. matt white metal plate radiant heater matt black metal plate Which metal plate absorbs more energy and which plate emits more energy in this time? absorbs more emits more black black black white white black white white ULES /01/O/N/05 [Turn over

4 7 cm scale is fixed next to an unmarked mercury-in-glass thermometer. The ice point and the steam point are marked. 4 thermometer ice T steam cm scale What is the temperature if the mercury is at T? 44 o 56 o 60 o 66 o 8 The diagram shows waves travelling on the sea. R Q S T P Which points are one wavelength apart? P and R Q and S Q and T S and T 9 surf-board moves at a speed of 5 m / s on the crest of a wave. The distance between successive wave crests is 10 m. What is the frequency of the wave motion? 0.5 z 2 z 5 z 10 z ULES /01/O/N/05

5 10 The diagram shows a single ray of light being directed at a plane mirror o What are the angles of incidence and reflection? angle of incidence angle of reflection 40 o 40 o 40 o 50 o 50 o 40 o 50 o 50 o 11 What is the approximate range of audible frequencies for a young person? 1 z to 2 kz 20 z to 20 kz 20 kz to 200 kz 1000 kz to kz 12 battery moves a charge of 60 around a circuit in a time of 20 s. What is the average current in the circuit? ULES /01/O/N/05 [Turn over

6 6 13 circuit is set up as shown. switch 2 switch 1 switch 3 Which switch setting lights all three lamps? switch 1 switch 2 switch 3 closed closed open closed open closed open closed closed open closed open 14 In the circuit shown the reading on the ammeter is 1. 4Ω 4Ω V 1 4Ω V 2 What would be the readings shown by the voltmeters V 1 and V 2? V 1 V 2 2 V 2 V 2 V 4 V 4 V 4 V 4 V 2 V ULES /01/O/N/05

7 7 15 person uses a 3 kw electric fire for 2 hours and a 2 kw heater for 4 hours. What is the total cost if the price of electrical energy is 5.0 cents per unit (kilowatt-hour)? 70 cents 60 cents 40 cents 30 cents 16 permanent magnet can be demagnetised by using a solenoid and switching the current on then off. Which diagram shows the most effective method of producing demagnetisation? N S N S magnet left in place magnet withdrawn before switching off N S N S magnet left in place magnet withdrawn before switching off ULES /01/O/N/05 [Turn over

8 8 17 The diagram shows a coil in a magnetic field. S N X Y When the coil is part of an a.c. generator, what must be connected directly to X and Y? a.c. supply carbon brushes slip rings soft-iron core 18 The diagram shows a transformer which is 100 % efficient. The primary current is V a.c primary circuit iron core secondary circuit 2 V a.c What will be the secondary current? ULES /01/O/N/05

9 19 Which table correctly identifies the locations of protons, neutrons and electrons in an atom? 9 nucleus nucleus inside outside inside outside electrons electrons neutrons neutrons protons protons nucleus nucleus inside outside inside outside electrons electrons neutrons neutrons protons protons 20 radioactive nucleus X, decays by emitting a beta-particle to form a nucleus, Y. What represents nucleus Y? X = Y + β 223 Y Y 85 Y 86 Y ULES /01/O/N/05 [Turn over

10 21 gas Y, is less dense than air, very soluble in water and is an alkali. 10 Which method is used to collect a dry sample of the gas? dry Y Y calcium oxide calcium oxide Y dry Y Y dry Y Y dry Y water concentrated sulphuric acid 22 Which changes occur when a liquid at 50 o becomes a gas at 120 o? separation of particles energy of particles attractive force between particles decreases increases decreases decreases decreases increases increases increases decreases increases decreases increases nucleus is represented by the symbol 37 X. What does this nucleus contain? 37 electrons and 44 neutrons 37 neutrons and 81 protons 37 protons and 44 neutrons 37 protons and 81 neutrons ULES /01/O/N/05

11 11 24 Element X has an electronic structure Element Y has an electronic structure What is made when X and Y react? type of compound formula covalent compound X 2 Y covalent compound XY 2 ionic compound X 2 Y ionic compound XY 2 25 Element Q has four electrons in its outermost shell. Element Q can combine with hydrogen and chlorine to form a compound Ql 3. The diagram shows the electronic structure of Ql 3 (outer shell electrons only). l Q l l Which of these properties will this compound have? It will be a solid at room temperature. It will be readily soluble in water. It will be a good conductor of electricity. It will have a low boiling point. 26 Propane burns completely in oxygen as shown in the equation. 3 8 (g) + 5O 2 (g) 3O 2 (g) O(l) If 0.1 mol of propane is burnt completely, which volume of gaseous product is obtained, measured at room temperature and pressure? 0.1 dm dm dm dm 3 ULES /01/O/N/05 [Turn over

12 27 The reaction between aqueous sodium hydroxide and hydrochloric acid is exothermic. 12 Which graph shows the change in temperature when aqueous sodium hydroxide is added to hydrochloric acid until the alkali is present in excess? temperature temperature volume of sodium hydroxide volume of sodium hydroxide temperature temperature volume of sodium hydroxide volume of sodium hydroxide 28 urve 1 shows the volume of carbon dioxide given off when 5 g of calcium carbonate lumps react completely with an excess of hydrochloric acid at 40 o. volume of carbon dioxide / cm time / s What change could produce curve 2? use a more concentrated solution of the acid use a lower temperature use 3 g of calcium carbonate lumps use 5 g of calcium carbonate powder ULES /01/O/N/05

13 13 29 queous potassium sulphate can be prepared by titrating dilute sulphuric acid against aqueous potassium carbonate. Which conclusion can be drawn from this information? Potassium carbonate is insoluble in water. Potassium carbonate neutralises sulphuric acid. Potassium sulphate is a base. Potassium sulphate is insoluble in water. 30 The table shows the results of halogen displacement experiments. halogen added halide solution X Y Z X 2 Y 2 displaced Z 2 displaced Y 2 no reaction no reaction Z 2 no reaction Y 2 displaced What are halogens X, Y and Z? X Y Z r l I r I l l r I l I r 31 The results of adding some metals to salt solutions are shown below. copper + zinc sulphate no reaction magnesium + zinc sulphate magnesium sulphate + zinc copper + silver sulphate copper(ii) sulphate + silver What is the order of reactivity of the metals? most reactive least reactive magnesium copper zinc silver magnesium zinc copper silver silver copper zinc magnesium zinc magnesium silver copper ULES /01/O/N/05 [Turn over

14 32 Which statement about the production of iron from haematite is correct? 14 oke is used to oxidise the slag. Limestone is used to produce oxygen for the coke to burn. Molten iron floats on slag at the furnace base. The haematite is reduced by carbon monoxide. 33 Why is aluminium used to make food containers that are resistant to corrosion? It does not react with acids. It forms a covalent oxide. It forms an alloy with zinc. It has a protective oxide layer on its surface cm 3 sample of bottled gas used for diving was placed in a gas syringe in the apparatus shown. glass tube full of copper turnings 100 cm 3 syringe 100 cm 3 syringe The gas was passed backward and forward over heated copper turnings. The results obtained were used to plot the graph. volume of gas remaining / cm heat number of times gas is passed over hot copper What is the percentage of oxygen in the bottled gas? 20 % 30 % 70 % 80 % ULES /01/O/N/05

15 15 35 ll the members of a homologous series have the same empirical formula. general formula. molecular formula. physical properties. 36 What does not happen in the complete combustion of propane, 3 8? a deposit of soot is formed carbon-carbon bonds break carbon-oxygen bonds form energy is released 37 The names and molecular structure of two alkanes are shown. methane ethane What is the next alkane in the homologous series? name formula butane 3 6 butane 3 8 propane 3 6 propane Which compound will decolourise aqueous bromine? ethane ethanoic acid ethene poly(ethene) ULES /01/O/N/05 [Turn over

16 16 ULES /01/O/N/05 39 Which structure shows a compound that reacts with ethanol to give an ester? O O O O O 40 Which of the following is a polyester? nylon poly(ethene) protein Terylene

17 17 LNK PGE 5124/01/O/N/05

18 18 LNK PGE 5124/01/O/N/05

19 19 LNK PGE 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 (ULES) 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. 5124/01/O/N/05

20 20 T SEET The Periodic Table of the Elements Group I II III IV V VI VII ydrogen 2 4 e elium 3 7 Li Lithium 4 9 e eryllium 5 11 oron 6 12 arbon 7 14 N Nitrogen 8 16 O Oxygen 9 19 F Fluorine Ne Neon Na Sodium Mg Magnesium l luminium Si Silicon P Phosphorus S Sulphur l hlorine r rgon K Potassium a alcium Sc Scandium Ti Titanium V Vanadium r hromium Mn Manganese Fe Iron o obalt Ni Nickel u opper Zn Zinc Ga Gallium Ge Germanium s rsenic Se Selenium r romine Kr Krypton Rb Rubidium Sr Strontium Y Yttrium Zr Zirconium Nb Niobium 96 Mo Molybdenum Tc Technetium Ru Ruthenium Rh Rhodium Pd Palladium g Silver d admium In Indium Sn Tin Sb ntimony Te Tellurium I Iodine Xe Xenon s aesium Fr Francium a arium 226 Ra Radium 139 La Lanthanum 57 * c ctinium f afnium Ta Tantalum W Tungsten Re Rhenium Os Osmium Ir Iridium Pt Platinum u Gold g Mercury Tl Thallium Pb Lead i ismuth 84 Po Polonium 85 t statine 86 Rn Radon *58-71 Lanthanoid series ctinoid series Key b a X a = relative atomic mass X = atomic symbol b = proton (atomic) number e erium 232 Th Thorium 141 Pr Praseodymium 59 Pa Protactinium Nd Neodymium 238 U Uranium Pm Promethium Np Neptunium Sm Samarium Pu Plutonium Eu Europium m mericium Gd Gadolinium m urium Tb Terbium k erkelium y ysprosium f alifornium o olmium Es Einsteinium Er Erbium Fm Fermium Tm Thulium Md Mendelevium Yb Ytterbium No Nobelium Lu Lutetium Lr Lawrencium 103 The volume of one mole of any gas is 24 dm 3 at room temperature and pressure (r.t.p.). University of ambridge International Examinations is part of the University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. 5124/01/O/N/05