Question 1:
What are two of the characteristics of all living organisms?
(A) breathing and respiration
(B) egestion and excretion
(C) movement and sensitivity
(D) nutrition and photosynthesis
▶️Answer/Explanation
Ans : C
Question 2:
Which statements about cell structure are correct?
1 Animal cells have cell membranes but no cell walls.
2 Animal cells have cell membranes and cell walls.
3 Plant cells have cell walls but no cell membranes.
4 Plant cells have cell membranes and cell walls.
(A) 1 and 3
(B) 1 and 4
(C) 2 and 3
(D) 2 and 4
▶️Answer/Explanation
Ans : B
Question 3:
What is required to test for the presence of a reducing sugar?
▶️Answer/Explanation
Ans : A
Question 4:
The graph shows the effect of increasing temperature on the rate of an enzyme-controlled reaction.
Which statement describes what is happening between 10 ºC and 30 ºC on the graph?
(A) An increase in the rate of reaction increases the temperature of the reaction.
(B) An increase in temperature has no effect on the rate of a reaction.
(C) As the rate of reaction increases, the temperature has no effect.
(D) As the temperature increases, the rate of reaction also increases.
▶️Answer/Explanation
Ans : D
Question 5:
What are the products of photosynthesis in a green plant?
(A) carbon dioxide and water
(B) glucose and carbon dioxide
(C) oxygen and glucose
(D) oxygen and water
▶️Answer/Explanation
Ans : C
Question 6:
The diagram shows human teeth in the lower jaw.
Which type of tooth is X?
(A) canine
(B) incisor
(C) molar
(D) premolar
▶️Answer/Explanation
Ans : D
Question 7:
The diagram shows an investigation into water transport in plants.
Which part of the stem transports the coloured dye from the test-tube to the petals of the flower?
(A) mesophyll cells
(B) phloem
(C) root hair cells
(D) xylem
▶️Answer/Explanation
Ans : D
Question 8:
Which row shows the changes that occur during exercise?
▶️Answer/Explanation
Ans : A
Question 9:
Which activities increase the secretion of adrenaline in the human body?
▶️Answer/Explanation
Ans : A
Question 10:
The roles of oxygen, water and light in seed germination are investigated.
The results of the experiment are shown.
Which factors are shown to be needed for germination?
(A) light and water only
(B) light and oxygen only
(C) oxygen and water only
(D) oxygen, water and light
▶️Answer/Explanation
Ans : C
Question 11:
In a plant, the allele for red flowers is dominant to the allele for yellow flowers. A heterozygous red-flowered plant is crossed with a homozygous yellow-flowered plant.
Which statement about the offspring is correct?
(A) 25% will have red flowers and 75% will have yellow flowers.
(B) 50% will have red flowers and 50% will have yellow flowers.
(C) 75% will have red flowers and 25% will have yellow flowers.
(D) 100% will have red flowers and 0% will have yellow flowers.
▶️Answer/Explanation
Ans : B
Question 12:
Which definition is correctly matched to a type of organism?
▶️Answer/Explanation
Ans : D
Question 13:
Which row about a process in the carbon cycle is correct?
▶️Answer/Explanation
Ans : B
Question 14:
Calcium carbonate reacts with dilute hydrochloric acid in a flask. The reaction releases carbon dioxide gas.
The decrease in the mass of the flask and its contents is measured over time.
Which pieces of apparatus must be used?
1 balance
2 pipette
3 thermometer
4 stop-clock
(A) 1 and 2
(B) 1 and 4
(C) 2 and 3
(D) 3 and 4
▶️Answer/Explanation
Ans : B
Question 15:
Which process involves a chemical change?
(A) burning a wooden splint
(B) dissolving sodium chloride in water
(C) evaporating water
(D) distilling petroleum
▶️Answer/Explanation
Ans : A
Question 16:
Which formula contains the most elements?
(A) NaOH
(B) Rb$_{2}$S
(C) SiCl$_{4}$
(D) SnO$_{2}$
▶️Answer/Explanation
Ans : A
Question 17:
What are the products of the electrolysis of dilute sulfuric acid using inert electrodes?
(A) hydrogen and sulfur dioxide
(B) oxygen and hydrogen
(C) oxygen and sulfur
(D) oxygen and sulfur dioxide
▶️Answer/Explanation
Ans : B
Question 18:
Some observations about two reactions are shown.
In reaction 1, heat is taken in from the surroundings.
In reaction 2, heat is released to the surroundings.
Which row describes each reaction?
▶️Answer/Explanation
Ans : B
Question 19:
Four beakers each contain 50 cm$^{3}$ dilute hydrochloric acid of equal concentration.
50 cm$^{3}$ of water is added to two of the beakers.
4.0 g magnesium carbonate is then added to each beaker. The particle sizes of the magnesium carbonate added to some of the beakers are different.
Which experiment has the lowest rate of reaction?
▶️Answer/Explanation
Ans : C
Question 20:
A piece of magnesium ribbon is placed in dilute hydrochloric acid.
The magnesium reacts and bubbles of a colourless gas are formed.
What is the word equation for this reaction?
(A) magnesium + hydrochloric acid → magnesium chloride + hydrogen
(B) magnesium + hydrochloric acid → magnesium chloride + carbon dioxide + water
(C) magnesium + hydrochloric acid → magnesium chloride + carbon dioxide
(D) magnesium + hydrochloric acid → magnesium chloride + hydrogen + water
▶️Answer/Explanation
Ans : A
Question 21:
Which chemical test does not produce a precipitate?
(A) carbon dioxide and limewater
(B) carbonate ions and dilute hydrochloric acid
(C) chloride ions and aqueous silver nitrate
(D) copper(II) ions and aqueous sodium hydroxide
▶️Answer/Explanation
Ans : B
Question 22:
Which statement about the halogens is correct?
(A) They become lighter in colour down the group.
(B) They are all gases at room temperature.
(C) They are members of the same period of the Periodic Table.
(D) They exist as diatomic molecules.
▶️Answer/Explanation
Ans : D
Question 23:
How is iron oxide converted to iron?
(A) oxidation using water
(B) reaction with hydrochloric acid
(C) reaction with sodium hydroxide
(D) reduction using carbon
▶️Answer/Explanation
Ans : D
Question 24:
Which volume of clean air contains 10.5 cm $^{3}$ of oxygen?
(A) 21 cm$^{3}$
(B) 42 cm$^{3}$
(C) 50 cm$^{3}$
(D) 100 cm$^{3}$
▶️Answer/Explanation
Ans : C
Question 25:
What are two uses of limestone?
1 as a fertiliser
2 to decrease the pH of soil
3 making lime
4 neutralising some industrial waste products
(A) 1 and 2
(B) 1 and 4
(C) 2 and 3
(D) 3 and 4
▶️Answer/Explanation
Ans : D
Question 26:
Petroleum is separated into fractions by fractional distillation.
Which row shows a use for the named fraction?
▶️Answer/Explanation
Ans : D
Question 27 :
Which statement about addition polymerisation is correct?
(A) Large monomer units join to form small polymer molecules.
(B) Large polymer molecules join to form small monomer units.
(C) Small monomer units join to form large polymer molecules.
(D) Small polymer molecules join to form large monomer units.
▶️Answer/Explanation
Ans : C
Question 28:
An object has a weight of 2.0 N.
The gravitational field strength g is 10 N/ kg.
What is the mass of the object?
(A) 0.020 kg
(B) 0.20 kg
(C) 2.0 kg
(D) 20 kg
▶️Answer/Explanation
Ans : B
Question 29:
The diagram shows four containers resting on a table. The containers have equal masses and square bases of equal areas. The centre of mass of each container is labelled X.
Which container is the most stable?
▶️Answer/Explanation
Ans : D
Question 30:
A worker exerts a force on a box to move it across a horizontal surface.
Which of the two quantities in the table affect the amount of work done by the force?
▶️Answer/Explanation
Ans : A
Question 31:
What is the useful energy transfer in a wind turbine?
(A) electrical energy to thermal energy
(B) gravitational potential energy to kinetic energy
(C) kinetic energy to electrical energy
(D) thermal energy to gravitational potential energy
▶️Answer/Explanation
Ans : C
Question 32:
What are the names for the changes of state between solids, liquids and gases?
▶️Answer/Explanation
Ans : B
Question 33 :
The diagrams show part of a water-heating system which is working by convection.
Which diagram shows the flow of water in the system?
▶️Answer/Explanation
Ans : A
Question 34 :
The diagram represents a wave.
How many wavelengths are there between X and Y?
(A) $\frac{2}{3}$
(B) 1
(C) $1\frac{1}{2}$
(D) 3
▶️Answer/Explanation
Ans : C
Question 35:
The diagram shows a battery connected to a 0.50 resistor and an ammeter. The reading on the ammeter is 0.20A.
What is the potential difference (p.d.) across the resistor?
(A) 0.10V
(B) 0.40V
(C) 0.70V
(D) 2.5V
▶️Answer/Explanation
Ans : A
Question 36 :
The diagram shows a circuit containing two resistors of resistance R and 2R and two ammeters X and Y.
Which ammeter shows the larger reading and what is the combined resistance of the two resistors?
▶️Answer/Explanation
Ans : C
Question 37:
An electrician has a box of identical fuses that do not have their rating marked on them.
They decide to test one of the fuses to determine its rating by gradually increasing the current in the fuse until it blows.
Which diagram shows a fuse connected in a suitable circuit?
▶️Answer/Explanation
Ans : D
Question 38:
The diagrams show patterns around a wire that is carrying a current in the direction shown.
Which diagram shows the pattern and the direction of the magnetic field caused by the current?
▶️Answer/Explanation
Ans : D
Question 39:
A nucleus has atomic number Z and mass number A.
What is equal to the value of A – Z?
(A) the number of electrons orbiting the nucleus
(B) the number of neutrons in the nucleus
(C) the number of nucleons in the nucleus
(D) the number of protons in the nucleus
▶️Answer/Explanation
Ans : B
Question 40 :
A radioactive isotope emits only alpha ($\alpha$)-particles.
A sample of the isotope emits 2000 $\alpha$-particles per second.
After 30 minutes, the sample emits 250 $\alpha$-particles per second.
What is the half-life of the isotope?
(A) 7.5 minutes
(B) 10 minutes
(C) 15 minutes
(D) 30 minutes
▶️Answer/Explanation
Ans : B