Science Physics Chemistry October 2005 Paper 1
Science Physics Chemistry October 2005 Paper 1
Science Physics Chemistry October 2005 Paper 1
1 hour
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)
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.
0
mm 25
20
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.
tower
balls
A acceleration
B final speed
C time of travel
D total increase in velocity
3 A block of mass 20 kg is pushed along a road with a force of 30 N. The frictional force is 10 N.
direction of movement
30 N
10 N road
What is the best position for its centre of mass and why is it placed there?
A 120 kg B 60 kg C 4 kg D 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.
Which metal plate absorbs more energy and which plate emits more energy in this time?
A black black
B black white
C white black
D white white
thermometer
ice T steam
0 1 2 3 4 5 6 6.6 7 8 9 10 11
cm scale
A 44 oC B 56 oC C 60 oC D 66 oC
T
Q S
10 The diagram shows a single ray of light being directed at a plane mirror.
40o
angle of angle of
incidence reflection
A 40o 40o
B 40o 50o
C 50o 40o
D 50o 50o
A 1 Hz to 2 kHz
B 20 Hz to 20 kHz
C 20 kHz to 200 kHz
D 1000 kHz to 20 000 kHz
switch 1
switch 2
switch 3
4Ω
4Ω
4Ω
V1
V2
V1 V2
A 2V 2V
B 2V 4V
C 4V 4V
D 4V 2V
15 A 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)?
16 A permanent magnet can be demagnetised by using a solenoid and switching the current on then
off.
A B
N S N S
C D
N S N S
S N
X Y
When the coil is part of an a.c. generator, what must be connected directly to X and Y?
A a.c. supply
B carbon brushes
C slip rings
D soft-iron core
18 The diagram shows a transformer which is 100 % efficient. The primary current is 0.5 A.
iron core
primary
secondary
circuit
circuit
40 V a.c 2 V a.c
A 0.025 A B 0.5 A C 1A D 10 A
19 Which table correctly identifies the locations of protons, neutrons and electrons in an atom?
A B
nucleus nucleus
inside outside inside outside
electrons electrons
neutrons neutrons
protons protons
C D
nucleus nucleus
inside outside inside outside
electrons electrons
neutrons neutrons
protons protons
227
85 X =Y+β
21 A gas Y, is less dense than air, very soluble in water and is an alkali.
A B
dry Y Y
calcium calcium
oxide oxide
dry Y
Y
C D
dry Y
dry Y
Y
Y
water
concentrated
sulphuric acid
attractive force
separation of particles energy of particles
between particles
81
23 A nucleus is represented by the symbol 37 X.
Element Q can combine with hydrogen and chlorine to form a compound QHCl3.
The diagram shows the electronic structure of QHCl3 (outer shell electrons only).
Cl
H Q Cl
Cl
If 0.1 mol of propane is burnt completely, which volume of gaseous product is obtained,
measured at room temperature and pressure?
27 The reaction between aqueous sodium hydroxide and hydrochloric acid is exothermic.
Which graph shows the change in temperature when aqueous sodium hydroxide is added to
hydrochloric acid until the alkali is present in excess?
A B
temperature temperature
C D
temperature temperature
28 Curve 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 oC.
1
volume of
carbon 2
dioxide / cm3
time / s
29 Aqueous potassium sulphate can be prepared by titrating dilute sulphuric acid against aqueous
potassium carbonate.
halide solution
halogen added
X– Y– Z–
X2 – Y2 displaced Z2 displaced
Y2 no reaction – no reaction
Z2 no reaction Y2 displaced –
X Y Z
A Br Cl I
B Br I Cl
C Cl Br I
D Cl I Br
31 The results of adding some metals to salt solutions are shown below.
33 Why is aluminium used to make food containers that are resistant to corrosion?
34 A 100 cm3 sample of bottled gas used for diving was placed in a gas syringe in the apparatus
shown.
The gas was passed backward and forward over heated copper turnings. The results obtained
were used to plot the graph.
100
90
80
volume of gas
remaining / cm3
70
60
50
0 2 4 6 8 10 12
number of times gas is
passed over hot copper
A 20 % B 30 % C 70 % D 80 %
A empirical formula.
B general formula.
C molecular formula.
D physical properties.
H H H
H C H H C C H
H H H
methane ethane
name formula
A butane C3H6
B butane C3H8
C propane C3H6
D propane C3H8
A ethane
B ethanoic acid
C ethene
D poly(ethene)
39 Which structure shows a compound that reacts with ethanol to give an ester?
A B
H H H O
C C H C C
H H H O H
C D
H O H H
H C C H H H O C C H
H O C C H H H
H H
A nylon
B poly(ethene)
C protein
D Terylene
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DATA SHEET
The Periodic Table of the Elements
Group
I II III IV V VI VII 0
7 9 11 12 14 16 19 20
Li Be B C N O F Ne
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
3 4 5 6 7 8 9 10
23 24 27 28 31 32 35.5 40
Na Mg Al Si P S Cl Ar
Sodium Magnesium Aluminium Silicon Phosphorus Sulphur Chlorine Argon
11 12 13 14 15 16 17 18
39 40 45 48 51 52 55 56 59 59 64 65 70 73 75 79 80 84
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
20
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
85 88 89 91 93 96 101 103 106 108 112 115 119 122 128 127 131
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Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
133 137 139 178 181 184 186 190 192 195 197 201 204 207 209
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Caesium Barium Lanthanum Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon
55 56 57 * 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
226 227
Fr Ra Ac
Francium Radium Actinium
87 88 89
140 141 144 150 152 157 159 162 165 167 169 173 175
*58-71 Lanthanoid series
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
90-103 Actinoid series Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium
58 59 60 61 62 63 64 65 66 67 68 69 70 71
a a = relative atomic mass 232 238
Key X X = atomic symbol Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium
b b = proton (atomic) number 90 91 92 93 94 95 96 97 98 99 100 101 102 103
The volume of one mole of any gas is 24 dm3 at room temperature and pressure (r.t.p.).
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