Question 1:-
Subtopic: B1.1 Characteristics of living organisms
The diagram shows how an aquatic carnivorous bladderwort plant reacts to tiny aquatic organisms that swim by.
Which characteristics of living organisms are shown by this plant?
A excretion and growth
B growth and sensitivity
C nutrition and excretion
D nutrition and sensitivity
▶️Answer/Explanation
Ans: D
Question 2:-
Subtopic: B2.1 Cell structure
Which structure is found inside some living plant cells but not in animal cells?
A cell membrane
B chloroplast
C nucleus
D stomata
▶️Answer/Explanation
Ans :B
Question 3:-
Subtopic: B4.1 Biological molecules
Tests are carried out on a colourless liquid. The results are shown.
Which food groups does the liquid contain?
A protein and fat
B protein and starch
C reducing sugar and fat
D starch and fat
▶️Answer/Explanation
Ans : A
Question 4:-
Subtopic: B5.1 Enzymes
The graph shows the rate at which 10 g of starch is broken down by amylase at four different temperatures.
At which temperature does amylase work best to break down starch?
A 10 ºC B 25 ºC C 40 ºC D 70 ºC
▶️Answer/Explanation
Ans : C
Question 5:-
Subtopic: B6.1 Photosynthesis
Why are nitrate ions necessary for plant growth?
A They are essential for producing starch.
B They are found in the chloroplasts.
C They are part of the cell sap.
D They are used in making amino acids.
▶️Answer/Explanation
Ans : D
Question 6:-
Subtopic: B7.3 Digestion
Which statements about chemical digestion are correct?
1 It breaks food into smaller pieces.
2 It converts small molecules into larger ones.
3 It produces molecules that can be absorbed.
4 It produces small molecules.
A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
▶️Answer/Explanation
Ans : D
Question 7:-
Subtopic: B9.3 Blood vessels
The arrows in the diagram represent blood vessels.
Which vessel is the pulmonary vein?
▶️Answer/Explanation
Ans : B
Question 8:-
Subtopic: B12.1 Respiration
Which process provides the energy for the maintenance of a constant body temperature?
A homeostasis
B photosynthesis
C respiration
D sweating
▶️Answer/Explanation
Ans : C
Question 9:-
Subtopic: B13.1 Coordination and response
The graph shows the pulse rate over a period of time.
At which point is adrenaline released into the blood?
▶️Answer/Explanation
Ans : A
Question 10:-
Subtopic: B15.4 Sexual reproduction in humans
Which row correctly matches a structure with its function in the human reproductive system?
▶️Answer/Explanation
Ans : D
Question 11:-
Subtopic: B16.1 Chromosomes and genes
In terms of the alleles present, which word describes the genetic make-up of an organism?
A dominant
B genotype
C phenotype
D recessive
▶️Answer/Explanation
Ans : B
Question 12:-
Subtopic: B18.2 Food chains and food webs
The diagram shows a food chain.
grass → rabbit → fox → flea
Which statement is correct?
A The grass is a primary consumer.
B The rabbit is a secondary consumer.
C The fox is a tertiary consumer.
D The flea is a tertiary consumer.
▶️Answer/Explanation
Ans : D
Question 13:-
Subtopic: B18.3 Carbon cycle
A student draws four different attempts at part of the carbon cycle.
Which diagram is correct?
▶️Answer/Explanation
Ans : A
Question 14:-
Subtopic: C12.4 Separation and purification
A student adds excess copper oxide powder to warm dilute sulfuric acid.
Aqueous copper sulfate is formed.
Which method is used to remove the unreacted copper oxide?
A chromatography
B crystallisation
C distillation
D filtration
▶️Answer/Explanation
Ans : D
Question 15:-
Subtopic: C2.5 Simple molecules and covalent bonds
Which diagram represents molecules of a compound?
▶️Answer/Explanation
Ans : B
Question 16:-
Subtopic: C3.1 Formulas
Potassium reacts with water.
potassium + water → ……1…… + ……2……
Which words complete the equation?
▶️Answer/Explanation
Ans : A
Question 17:-
Subtopic: C4.1 Electrolysis
Dilute sulfuric acid is electrolysed using the apparatus shown.
Which product forms at the cathode?
A hydrogen
B oxygen
C sulfur dioxide
D water vapour
▶️Answer/Explanation
Ans : A
Question 18:-
Subtopic: C5.1 Exothermic and endothermic reactions
The initial and final temperatures in two experiments, X and Y, are shown.
Which row shows the types of change that take place in these two experiments?
▶️Answer/Explanation
Ans : C
Question 19:-
Subtopic: C6.2 Rate of reaction
Which statement about rates of reaction is correct?
A Catalysts never affect the rate of reaction.
B Decreasing the temperature of a reaction increases the rate of reaction.
C Increasing the concentration of a reacting solution decreases the rate of reaction.
D Using smaller sized pieces of a solid increases the rate of reaction.
▶️Answer/Explanation
Ans : D
Question 20:-
Subtopic: C6.3 Redox
Which word equation represents a redox reaction?
A calcium carbonate → calcium oxide + carbon dioxide
B calcium oxide + hydrochloric acid → calcium chloride + water
C copper oxide + carbon → copper + carbon dioxide
D sodium oxide + water → sodium hydroxide
▶️Answer/Explanation
Ans : C
Question 21:-
Subtopic: C7.2 Oxides
A student makes lists of acidic oxides and basic oxides.
Which oxides are not in the correct list?
A carbon dioxide and sodium oxide
B potassium oxide and sulfur dioxide
C nitrogen dioxide and sulfur dioxide
D potassium oxide and calcium oxide
▶️Answer/Explanation
Ans : B
Question 22:-
Subtopic: C8.1 Arrangement of elements
The diagram shows overlapping circles into which different chemical formulae can be placed.
Which formula can be placed in the shaded area because it has all three properties?
A Br2 B CO C Cu D Na
▶️Answer/Explanation
Ans : C
Question 23:-
Subtopic: C8.5 Noble gases
Why are the elements in Group VIII of the Periodic Table unreactive?
A They are gaseous elements.
B They are monatomic elements.
C They have full inner shells of electrons.
D They have full outer shells of electrons.
▶️Answer/Explanation
Ans : D
Question 24:-
Subtopic: C9.4 Reactivity series
Pieces of four metals are added separately to test-tubes containing dilute hydrochloric acid.
The results are shown.
What is the order of reactivity of the metals from most to least reactive?
A 2 → 1 → 4 → 3
B 2 → 4 → 1 → 3
C 3 → 1 → 4 → 2
D 3 → 4 → 1 → 2
▶️Answer/Explanation
Ans : D
Question 25:-
Subtopic: C10.1 Water
Four watch-glasses contain solid salts as shown.
Water is added to each salt.
Which statement describes the salt solutions that form?
A They are blue or pink only.
B They are white or blue only.
C They are all pink.
D They are all blue.
▶️Answer/Explanation
Ans : A
Question 26:-
Subtopic: C11.3 Fuels
What is a use of the naphtha fraction obtained by the fractional distillation of petroleum?
A bottled gas for heating
B feedstock for making chemicals
C fuel for diesel engines
D road surfaces
▶️Answer/Explanation
Ans : B
Question 27:-
Subtopic: C11.5 Alkenes
Which substance is an unsaturated compound?
A ethane
B ethanol
C ethene
D methane
▶️Answer/Explanation
Ans : C
Question 28:-
Subtopic: P1.2 Motion
Which diagram shows the distance–time graph for an object moving with constant speed?
▶️Answer/Explanation
Ans : A
Question 29:-
Subtopic: P1.5 Forces
A parachutist and his parachute have a combined weight W. The parachutist falls vertically towards the Earth’s surface. The force of air resistance R opposes his motion.
The speed of the parachutist is constant.
Which statement about the forces on the parachutist is correct?
A W and R are both equal to zero.
B W is equal to R and greater than zero.
C W is greater than R.
D W is less than R.
▶️Answer/Explanation
Ans : B
Question 30:-
Subtopic: P1.5.2 Turning effect of forces
What is a suitable unit for the moment of a force?
A Nkg B N/ kg C N m D N/ m
▶️Answer/Explanation
Ans : C
Question 31:-
Subtopic: P1.6.4 Power
A machine takes a certain time to do a certain quantity of work.
Which pair of changes must increase the power of the machine?
A decreasing the work done and decreasing the time taken
B decreasing the work done and increasing the time taken
C increasing the work done and decreasing the time taken
D increasing the work done and increasing the time taken
▶️Answer/Explanation
Ans : C
Question 32:-
Subtopic: P1.6.3 Energy resources
Which source of energy is non-renewable?
A chemical energy in a fossil fuel
B energy in tides
C geothermal energy
D wind energy
▶️Answer/Explanation
Ans : A
Question 33:-
Subtopic: P2.3 Transfer of thermal energy
A hot water tank is fitted with two identical heaters P and Q. Heater P is fitted above heater Q, as shown. The tank is full of cold water.
When only heater Q is switched on, it takes a long time to heat the tank of water to 60 ºC.
What happens to the cold water when only heater P is switched on?
A All the water reaches 60 ºC in less time.
B All the water reaches 60 ºC in the same time.
C The water below heater P reaches 60 ºC in less time.
D The water above heater P reaches 60 ºC in less time.
▶️Answer/Explanation
Ans : D
Question 34:-
Subtopic: P3.1 General properties of waves
A water wave passes point Y.
A student counts how many wave crests pass point Y in 30 seconds.
Using only this information, what can the student calculate?
A the amplitude of the wave
B the frequency of the wave
C the speed of the wave
D the wavelength of the wave
▶️Answer/Explanation
Ans : B
Question 35:-
Subtopic: P3.2 Light
The diagram is a displacement–time graph for the molecules in air as a sound wave passes.
The graphs below are drawn to the same scale.
Which graph represents a quieter sound with a higher pitch?
▶️Answer/Explanation
Ans : D
Question 36:-
Subtopic: P4.1 Simple phenomena of magnetism
Which diagram shows the pattern and direction of the magnetic field near the S pole of a bar magnet?
▶️Answer/Explanation
Ans : C
Question 37:-
Subtopic: P4.2 Electrical quantities
A 2.0Ω resistor and a 3.0Ω resistor are connected in series with a 10V battery.
What is the current in the circuit?
A 0.50A B 2.0A C 5.0A D 50A
▶️Answer/Explanation
Ans : B
Question 38:-
Subtopic: P4.4 Electrical safety
The current in an electric heater is 10A when in normal use. The heater circuit contains a fuse.
What is the purpose of the fuse and what is a suitable rating for the fuse?
▶️Answer/Explanation
Ans : D
Question 39:-
Subtopic: P5.1 The nucleus
The nucleus of an isotope of gold contains 79 protons and 118 neutrons. The symbol for gold is Au.
What is the nuclide symbol for this isotope?
A \( _{118}^{79}\textrm{Au}\)
B \( _{197}^{79}\textrm{Au}\)
C \( _{79}^{118}\textrm{Au}\)
D \( _{79}^{197}\textrm{Au}\)
▶️Answer/Explanation
Ans : D
Question 40:-
Subtopic: P5.2 Radioactivity
The isotope of americium used in a smoke detector has a half-life of 430 years. A sample of this
isotope emits 36 000 particles per minute.
At which rate does it emit particles 1290 years later?
A 4500 counts per minute
B 9000 counts per minute
C 12 000 counts per minute
D 18 000 counts per minute
▶️Answer/Explanation
Ans : A