GCSE Combined Science Quiz

Two sets of twelve questions, each mixing biology, chemistry and physics. Choose one answer for each question, then select Check my answers. Nothing is saved or sent anywhere. Options are labelled A to D in order.

Set 1

Question 1 (Biology)
Which organelle is the main site of aerobic respiration in an animal cell? A. Nucleus B. Mitochondrion C. Ribosome D. Cell membrane

Question 2 (Chemistry)
An atom has 11 protons and 12 neutrons. What is its mass number? A. 11 B. 12 C. 23 D. 1

Question 3 (Physics)
A car of mass 800 kg accelerates at 2 m/s². What resultant force acts on it? A. 400 N B. 802 N C. 1,600 N D. 16,000 N

Question 4 (Biology)
Which substance is a product of photosynthesis? A. Carbon dioxide B. Water C. Oxygen D. Starch is the only product

Question 5 (Chemistry)
Which ion is present in every acidic solution? A. OH⁻ B. H⁺ C. Na⁺ D. Cl⁻

Question 6 (Physics)
Which type of wave is sound? A. Transverse B. Longitudinal C. Electromagnetic D. Both transverse and electromagnetic

Question 7 (Biology)
A student places a plant cell in very concentrated salt solution. What is most likely to happen? A. Water enters and the cell bursts B. Water leaves and the cell becomes limp C. Nothing moves across the membrane D. Salt is made inside the cell

Question 8 (Chemistry)
Which change is exothermic? A. Ice melting B. Burning methane C. Dissolving ammonium nitrate in water D. Boiling water

Question 9 (Physics)
A 60 W lamp is on for 10 seconds. How much energy does it transfer? A. 6 J B. 50 J C. 70 J D. 600 J

Question 10 (Biology)
Which term describes a person with two different alleles of a gene? A. Homozygous B. Heterozygous C. Recessive D. Dominant

Question 11 (Chemistry)
Which metal would displace copper from copper sulfate solution? A. Silver B. Gold C. Zinc D. None of these

Question 12 (Physics)
What happens to the resistance of a thermistor, as used in a temperature sensor, as its temperature rises? A. It increases B. It decreases C. It stays the same D. It becomes zero

Set 2

Question 1 (Chemistry)
What is the relative formula mass of carbon dioxide, CO₂? (C = 12, O = 16) A. 28 B. 44 C. 32 D. 56

Question 2 (Biology)
Which blood component carries oxygen around the body? A. Plasma B. Platelets C. Red blood cells D. White blood cells

Question 3 (Physics)
A moving object has a speed of 6 m/s and covers its journey in 5 s. How far does it travel at constant speed? A. 1.2 m B. 11 m C. 30 m D. 300 m

Question 4 (Chemistry)
What type of bonding is found in sodium chloride? A. Covalent B. Metallic C. Ionic D. Hydrogen bonding

Question 5 (Biology)
Which statement about enzymes is correct? A. They are used up in the reactions they speed up B. They work at any temperature C. They are specific to one type of substrate D. They are made of carbohydrate

Question 6 (Physics)
Which is a renewable energy resource? A. Coal B. Natural gas C. Tidal power D. Uranium

Question 7 (Chemistry)
A solution has a pH of 2. How would you describe it? A. Weakly alkaline B. Neutral C. Strongly acidic D. Weakly acidic

Question 8 (Biology)
Which process produces gametes? A. Mitosis B. Meiosis C. Diffusion D. Transpiration

Question 9 (Physics)
An isotope has a half-life of 4 hours. A sample starts with 80 g of it. How much remains after 12 hours? A. 40 g B. 20 g C. 10 g D. 0 g

Question 10 (Chemistry)
Which gas is produced when a metal reacts with dilute hydrochloric acid? A. Oxygen B. Carbon dioxide C. Hydrogen D. Chlorine

Question 11 (Biology)
In a food chain, what do arrows show? A. Which organism is bigger B. Direction energy and biomass are passed on C. Which organism lives longer D. How many of each organism there are

Question 12 (Physics)
Two resistors of 4 ohms and 6 ohms are connected in series. What is the total resistance? A. 2.4 ohms B. 5 ohms C. 10 ohms D. 24 ohms

Part of the GCSE Combined Science revision set: the revision guide, glossary of key terms and comparison of the three exam boards.

GCSE Combined Science quiz

Set 1

Set 2

Sources

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