📄 Exam Questions & Readable Text Transcript
Full OCR-extracted text of questions, syllabus codes, and exam instructions.
Extracted Content: 4003q1 Specimen paper
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Candidate Name Centre Number Candidate Number> “zisec 1
For Performance Measurement
ZIMBABWE SCHOOL EXAMINATIONS COUNCIL
General Certificate of Education Ordinary Level
COMBINED SCIENCE 4003/1
PAPER 1 Multiple Choice
SPECIMEN PAPER 2018 1 hour
Additional materials:
Multiple Choice answer sheet
Soft clean eraser
Soft pencil (type B or HB is recommended.)
\ Calculator (Optional) )
TIME 1 hour
INSTRUCTIONS TO CANDIDATES
Do not open this booklet until you are told to do so.
Write your name, Centre number and candidate number on the answer sheet in the spaces
rovided unless this has already been done for you.
Read very carefully the instructions on the answer sheet.
INFORMATION FOR CANDIDATES
Each correct answer will score onemark. A mark will not be deducted for a wrong answer. Any
rough working should be done in this booklet.
There are forty questions in 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 provided.
This question paper consists of 13 printed pages and 3 blank pages.
Copyright: Zimbabwe School Examinations Council, Specimen paper.
©ZIMSEC Specimen paper [Turn over
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Which instrument is most suitable for observing specialised cells?A microscope
B telescope
Cc bioviewer
D magnifying lens
The diagram shows a specialised cell.
nucleus
vacuole
What is the name of the cell?
A muscle cell
B pailisade cell
C root hair cell
D red blood cell
Which adaptation of a leaf does not increase the rate of photosynthesis?
A airspaces
B thick cuticle
C numerous stomata
D large surface area
Which atmospheric condition reduces the rate of water uptake in plants?
A_ high humidity
B high wind speed
C_ high temperature
D high light intensity
A wind pollinated flower
A has short filaments.
B has large petals.
Chas numerous pollen grains.
D_ produces nectar.
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11Ebola is caused by a
A_ bacterium.
B fungus.
C_ protozoan.
D virus.
Excessive consumption of alcohol leads to
A emphysema.
B hallucinations.
C lung cancer.
D liver cirrhosis.
Which deficiency disease is caused by lack of Vitamin C?
A goitre
B scurvy
C anaemia
D rickets
A student carried out a test on a food substance using the Biuret solution and a purple
colour was observed.
Which nutrient was present in the food substance?
A fats
B proteins
C vitamins
D carbohydrates
Which is a function of the white blood cells?
A defence
B excretion
C transport
D homeostasis
Which contraceptive method prevents ovulation?
A pill
B spermicides
C sterilization
D intra uterine device
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416
Which event will result in a child acquiring active immunity?
A_ keeping the child away from sick people
B injection the child with artificial hormones
C_ injection the child with a vaccine
D breastfeeding the child for at least six months
What happens to most of the energy as it flows through an ecosystem?
A Itis recycled.
B Itis lost as heat.
C Itis used in digestion.
D Itis stored as carbohydrates.
The physical property used in fractional distillation is the difference in
A. densities of the liquids.
B boiling points of the liquids.
C_ melting points of the liquids.
D heat capacities of the liquids.
33CI and ?3CI are called
A isomers.
B isotopes.
C monomers.
D polymers.
The diagram show the outermost shell of element Z.
Z forms an ion with a charge of
A 72°,
B 72+,
Cc Zz.
D 27.
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17Sulphuric acid and calcium hydroxide reacts as shown by the equation:
H2S04 (aq) +Ca(OH)2(aq) > CaSO4(aq) +2H20q)
If 0.1 moles of sulphuric acid are used, how many moles of water are produced?
A 0.1
B 0.2
C 1.0
D 2.0
An organic compound contains 84 % carbon(C) and 16 % hydrogen (H) by mass.
[atomic mass of C is 12 and that of H is 1]
What is the empirical formula of the organic compound?
A CH
B CH)
C CoH
D CoHa
Which substance, in exhaust fumes, causes global warming?
A carbon soot
B carbon dioxide
C_ water vapour
D carbon monoxide
What is the use of limestone in the blast furnace?
A_ to produce slag
B to actasa fuel
C to produce carbon monoxide
D to reduce iron (III) oxide to iron
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21 Which diagram, A, B, C, or D, shows the structure of ethane?22 ~_—‘ The list shows part of the reactivity series of metals:
calcium
magnesium
zinc
copper
What is the position of a metal that reacts vigorously with cold water?
A_ below copper
B above calcium
C_ between zinc and copper
D_ between magnesium and zinc
23 Which temperature is used in the Haber process?
A 200°C
B 300°C
C 450°C
D 800°C
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The equation shows the reaction between iron oxide and carbon monoxide.iron oxide + carbon monoxide iron + carbon dioxide
Which is the oxidising agent?
A iron
B iron oxide
C carbon dioxide
D carbon monoxide
The flow diagram shows the manufacture of sulphuric acid.
sulphur X added
° °
sulphur Iphuri
What is X?
A water
B vanadium pentoxide
C._ dilute sulphuric acid
D concentrated sulphuric acid
The diagram shows the structure of an organic molecule.
H H
H—C ——C——0H
H
To which homologous series does the molecule belong?
A alcohols
B aldehydes
C alkanes
D alkenes
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Which instrument would be used to accurately measure the internal diameter of a glass bottle?A metre rule
B vernier callipers
C tape measure
D micrometer screw gauge
Weight can be calculated by multiplying acceleration due to gravity by
A mass.
B velocity.
C time.
D distance.
The diagram shows a pulley system.
LLLSL LL
What is the velocity ratio (VR) of the pulley system?
Sanr
Bon re
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30. ~—s— The diagrams show the four strokes of a petrol engine.Which diagram, A, B, C or D, shows the inlet stroke?
31 The diagram shows a simple direct current (d.c) electric motor.
Which part, A, B, C or D, is the commutator?
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103 ~= Which circuit diagram, A, B, C ar D, can be used to determine the resistance of a
resistor, R?
A
B
i
Cc
R
. Lo
Hh
D
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1133.‘ The pie chart shows components X, Y and Z which are in a mixture.
What is the percentage of Z in the mixture?
A 8%
B 16%
C 25%
D 75%
What is the pressure exerted on the wall by the wind?
A 20 N/m?
B 40 N/m
C 100 N/m?
D 200 N/m?
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A wind blows with a force of 200 N against a wall of height 2 m and length 5 m.
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1235 ~—s- The diagram shows a manometer used to measure gas pressure.
[Acceleration due to gravity is g, density of liquid is p.]
atmospheric pressure (P)
Which expression gives the gas pressure, G?
A G = P-pgh
B G =P +pgh
C G = pgh-P
D G = pgh
36 ~=— Why does a solar cooker have a shiny surface?
A to reflect heat
B to conduct heat
C_ to absorb heat
D to concentrate heat
37 Which media of communication is used to share pictures using cell phones?
A coaxial cable
B optic fibre
C sheathed pair cables
D wi-fi
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1338 The diagram shows a 3-pin plug.
What is the standard colour of wire Y?
A green-yellow
B blue
C black
D brown
39 ~=What is the energy conversion in a generator?
A electrical energy ————~ _ kinetic energy
B electrical energy ————> _ mechanical energy
C mechanical energy ————~ electrical energy
D mechanical energy» _ potential energy
40 Electricity costs 10 cents per kilowatt hour (kWh).
How much does it cost to run a 0.75 kw machine for 20 hours?
A $0.375
B $1.50
C $7.50
D $15.00
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