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Question 1:-

Subtopic: B1.1 Characteristics of living organisms

The diagram shows a germinating seed below the soil surface.

                                       

Which characteristic of living organisms ensures that the shoot grows upwards and the root grows downwards?
(A) excretion
(B) nutrition
(C) reproduction
(D) sensitivity

▶Answer/Explanation

Ans : D

Question 2:-

Subtopic: B3.1 Diffusion

What is the net movement of molecules during diffusion?
(A) from a higher concentration to a lower concentration down a concentration gradient
(B) from a higher concentration to a lower concentration up a concentration gradient
(C) from a lower concentration to a higher concentration down a concentration gradient
(D) from a lower concentration to a higher concentration up a concentration gradient

▶Answer/Explanation

Ans : A

Question 3:-

Subtopic: B4.1 Biological molecules

Which smaller molecules is glycogen made from?
(A) amino acids
(B) fatty acids
(C) glucose
(D) glycerol

▶Answer/Explanation

Ans : C

Question 4:-

Subtopic: B5.1 Enzymes

The graph shows the effect of pH on two different enzymes.

     

Which statement is correct?
(A) Both enzymes show no activity in conditions of pH 4.
(B) Both enzymes are active in conditions of pH 5.
(C) Only enzyme X is active in conditions of pH 10.
(D) Only enzyme Y is active in conditions of pH 3.

▶Answer/Explanation

Ans : B

Question 5:-

Subtopic: B6.1 Photosynthesis

Which word is missing from the word equation for photosynthesis?
                    carbon dioxide + ………………… → glucose + oxygen

(A) carbohydrate
(B) chlorophyll
(C) light
(D) water

▶Answer/Explanation

Ans : D

Question 6:-

Subtopic: B7.1 Diet

Calcium and iron are components of the diet.
Which parts of the body need these components?

   

▶Answer/Explanation

Ans : C

Question 7:-

Subtopic: B9.2 Heart

The diagram shows a section through the human heart and the blood vessels associated with it.

                 

Which row names vessel X and correctly describes the direction of blood flow in vessel X?

     

▶Answer/Explanation

Ans : A

Question 8:-

Subtopic: C12.5 Identification of ions and gases

What is used to test for the presence of carbon dioxide?
(A) Benedict’s solution
(B) ethanol
(C) iodine solution
(D) limewater

▶Answer/Explanation

Ans : D

Question 9:-

Subtopic: B13.1 Coordination and response

The diagram shows three different neurones which form the reflex arc.

   

Which row correctly identifies X, Y and Z?

▶Answer/Explanation

Ans : B

Question 10:-

Subtopic: B15.1 Asexual reproduction

Which statements about asexual reproduction are correct?

1. It involves gametes.
2. It produces genetically identical offspring.
3. It only requires one parent.
(A) 1, 2 and 3              (B) 1 and 2 only               (C) 1 and 3 only             (D) 2 and 3 only

▶Answer/Explanation

Ans : D

Question 11:-

Subtopic: B16.3 Monohybrid inheritance

What is the correct term for an allele that is always expressed in the phenotype if it is present?
(A) dominant
(B) heterozygous
(C) homozygous
(D) recessive

▶Answer/Explanation

Ans : A

Question 12:-

Subtopic: B18.2 Food chains and food webs

The diagram shows a food web.

     

Which animals are carnivores?
(A) kingfishers, perch and water beetles
(B) kingfishers only
(C) perch and water beetles only
(D) tadpoles and freshwater shrimp

▶Answer/Explanation

Ans : A

Question 13:-

Subtopic: B18.3 Carbon cycle

Which process is not part of the carbon cycle?
(A) combustion
(B) fossilisation
(C) transpiration
(D) photosynthesis

▶Answer/Explanation

Ans : C

Question 14:-

Subtopic: C6.1 Physical and chemical changes

Which change is a chemical change?
(A) combustion of hydrocarbons
(B) filling a balloon with air
(C) freezing a glass of water
(D) mixing salt and sand

▶Answer/Explanation

Ans : A

Question 15:-

Subtopic: C2.2 Atomic structure and the Periodic Table

Which row shows the particles in the nucleus of an atom of  \( _{12}^{25}\textrm{Mg}\)?

▶Answer/Explanation

Ans : B

Question 16:-

Subtopic: C2.5 Simple molecules and covalent bonds

Which dot-and-cross diagram represents a molecule of ammonia?

▶Answer/Explanation

Ans : C

Question 17:-

Subtopic: C11.1 Formulas and terminology

The structure of a molecule of an organic compound is shown.

What is the formula of this compound?
(A) C4H4O3          (B) C4H4O3                (C) C4H6O3               (D) 4C6H3O

▶Answer/Explanation

Ans : C

Question 18:-

Subtopic: C4.1 Electrolysis

Concentrated aqueous sodium chloride is electrolysed using inert electrodes.
Which row describes observations of the tests on the gases collected at the electrodes?

 

▶Answer/Explanation

Ans : C

Question 19:-

Subtopic: C5.1 Exothermic and endothermic reactions

In a test-tube, magnesium reacts with dilute hydrochloric acid to form a salt and hydrogen.
The reaction makes the test-tube warm.
Which statement about the reaction explains this observation?
(A) It is a combustion reaction.
(B) It is a neutralisation reaction.
(C) It is endothermic.
(D) It is exothermic.

▶Answer/Explanation

Ans : D

Question 20:-

Subtopic: C6.3 Redox

Which statement explains why the rusting of iron is an oxidation reaction?
A Iron gains oxygen.
B Iron is a transition element.
C Iron is very reactive.
D Iron loses oxygen.

▶Answer/Explanation

Ans : A

Question 21:-

Subtopic: C7.1 The characteristic properties of acids and bases

What reacts with ammonia gas?

▶Answer/Explanation

Ans : B

Question 22:-

Subtopic: C8.3 Group VII properties

The halogens are elements in Group VII of the Periodic Table.
They are ……1…… non-metals.
They become ……2…… in colour down the group.
Which words complete gaps 1 and 2?

▶Answer/Explanation

Ans : A

Question 23:-

Subtopic: C8.4 Transition elements

Element X increases the rate of some reactions.
Element X is unchanged at the end of these reactions.
What is the position of element X in the Periodic Table?

 

▶Answer/Explanation

Ans : D

Question 24:-

Subtopic: C9.6 Extraction of metals

Which statement about aluminium is correct?
(A) It is extracted from bauxite by heating with carbon.
(B) It is extracted from bauxite by electrolysis.
(C) It is extracted from hematite by heating with carbon.
(D) It is extracted from hematite by electrolysis.

▶Answer/Explanation

Ans : B

Question 25:-

Subtopic: C10.1 Water

Which colours are observed when water is added to white copper(II) sulfate and to blue cobalt(II) chloride?

   

▶Answer/Explanation

Ans : C

Question 26:-

Subtopic: C11.3 Fuels

Which structure represents the main constituent of natural gas?

 

▶Answer/Explanation

Ans : A

Question 27:-

Subtopic: C11.5 Alkenes

Which substance reacts with ethene to produce ethanol?
(A) bromine
(B) hydrogen
(C) oxygen
(D) steam

▶Answer/Explanation

Ans : D

Question 28:-

Subtopic: P1.2 Motion

A car travels 100 m in the first 10 s of a journey and 300 m in the next 15 s.
What is the average speed of the car for this 25 s journey?
(A) 5.0 m/s             (B) 8.0 m/s                 (C) 15 m/ s             (D) 16 m/s

▶Answer/Explanation

Ans : D

Question 29:-

Subtopic: P1.5 Forces

A train travels along a horizontal track at constant speed. Two of the forces acting on the train are shown.

     

A force of air resistance is also acting on the train to give it a resultant force of zero.
What is this air resistance force?
(A) 40 000N backwards
(B) 80 000N backwards
(C) 40 000N forwards
(D) 80 000N forwards

▶Answer/Explanation

Ans : A

Question 30:-

Subtopic: P1.6.3 Energy resources

Some energy resources do not require a rotating turbine when used to generate electricity.
Which energy resource does not require a rotating turbine?
(A) geothermal
(B) nuclear
(C) solar
(D) wind

▶Answer/Explanation

Ans : C

Question 31:-

Subtopic: P2.2.2 Melting, boiling and evaporation

In a liquid-in-glass thermometer, which physical property of the liquid is used to measure temperature?
(A) colour
(B) mass
(C) pressure
(D) volume

▶Answer/Explanation

Ans : D

Question 32:-

Subtopic: P3.1 General properties of waves

A boy watches a water wave passing a boat that is floating on the sea.

   

Which single measurement allows the boy to be able to calculate the amplitude of the wave?
(A) the distance between one wave crest and the next
(B) the time taken for a wave crest to travel the length of the boat
(C) the time taken for the boat to move from its lowest point to its highest point
(D) the vertical distance between the highest point and the lowest point of the boat

▶Answer/Explanation

Ans : D

Question 33:-

Subtopic: P3.2.2 Refraction of light

The diagram shows a ray of light passing from glass into air.
Two angles P and Q are labelled.

 

What is the angle of refraction?
(A) P                  (B) Q                   (C) 90° – P                    (D) 90° – Q

▶Answer/Explanation

Ans : D

Question 34:-

Subtopic: P3.4 Sound

A student claps his hands once when standing 100 m away from a large wall.
The speed of sound in air is 330 m / s.
How long after clapping does the student hear an echo?
(A) 0.30 s              (B) 0.61 s                 (C) 1.7 s                 (D) 3.3 s

▶Answer/Explanation

Ans : B

Question 35:-

Subtopic: P4.2.1 Electrical charge

Two charged rods X and Y repel each other.
Which row gives a possible description of how the rods became charged?

     

▶Answer/Explanation

Ans : A

Question 36:-

Subtopic: P4.2.4 Resistance

There is a current of 4.0A in a resistor and a potential difference (p.d.) of 12V across it.
What is the resistance of the resistor?
(A) 0.33Ω                  (B) 3.0Ω                 (C) 8.0Ω                 (D) 48Ω 

▶Answer/Explanation

Ans : B

Question 37:-

Subtopic: P4.4 Electrical safety

The current in an electric heater is 6.0A when in normal use.
Four fuses with different ratings are available to protect the wire to the heater.
Which fuse is most suitable?
(A) 1A             (B) 5A                     (C) 8A                                (D) 20A

▶Answer/Explanation

Ans : C

Question 38:-

Subtopic: P4.5.3 Magnetic effect of current

The diagrams show the cross-section of a straight wire carrying a current into the page.
Which diagram shows the pattern and direction of the magnetic field around the wire?

 

▶Answer/Explanation

Ans : C

Question 39:-

Subtopic: P5.2.4 Half-life

A radioactive sample emits 1280 beta (β)-particles per second.
After 20 minutes, it emits 80 beta (β)-particles per second.
What is the half-life of the radioactive sample?
(A) 4.0 minutes
(B) 5.0 minutes
(C) 10 minutes
(D) 60 minutes

▶Answer/Explanation

Ans : B

Question 40:-

Subtopic: P5.2.2 The three types of nuclear emission

A radioactive nucleus emits an alpha (α)-particle.
What happens to the proton number and what happens to the nucleon number of the nucleus?

 

▶Answer/Explanation

Ans : A

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