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Daily Practice · GCSE Science

January 1984 5-a-day

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January 1984

31 sheets · 155 questions · GCSE

January 1984 compilationAll answers

Every sheet in January 1984

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st January 1984Describe how phagocytes destroy pathogens in the body.
  2. 2nd January 1984State the word equation for aerobic respiration.
  3. 3rd January 1984State one ethical concern raised by embryo screening.
  4. 4th January 1984Give the resolution of a burette that can be read to the nearest half of a small division.
  5. 5th January 1984Why is an atom electrically neutral?
  6. 6th January 1984State the law of conservation of mass.
  7. 7th January 1984State the name given to the negative electrode in electrolysis.
  8. 8th January 1984Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
  9. 9th January 1984Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
  10. 10th January 1984Explain why carbon monoxide is dangerous even though it has no smell.
  11. 11th January 1984Why can no device be 100 percent efficient?
  12. 12th January 1984Why is melting described as a physical change?
  13. 13th January 1984Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
  14. 14th January 1984Explain, in terms of particle motion, why a wave can transfer energy without transferring matter.
  15. 15th January 1984Name the region of the Solar System where most asteroids are found.
  16. 16th January 1984Convert 0.05 mm into micrometres.
  17. 17th January 1984State the function of the valves in the heart and in veins.
  18. 18th January 1984Name the gas that is released as a product of photosynthesis.
  19. 19th January 1984A person's blood glucose concentration is 4.8 mmol/dm^3 before breakfast and 7.2 mmol/dm^3 after breakfast. Calculate the increase in blood glucose concentration.
  20. 20th January 1984The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
  21. 21st January 1984Explain why potable water is not required to be chemically pure.
  22. 22nd January 1984Write the formula of calcium chloride and explain the ratio.
  23. 23rd January 1984State the name given to a reaction in which a substance loses electrons.
  24. 24th January 1984Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
  25. 25th January 1984Propene (C3H6) reacts with steam in the presence of a catalyst. Name the catalyst, and name the type of compound formed.
  26. 26th January 1984Give two processes that removed carbon dioxide from the early atmosphere.
  27. 27th January 1984Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
  28. 28th January 1984Give the equation linking energy transferred, charge flow and potential difference.
  29. 29th January 1984Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
  30. 30th January 1984State two factors, other than depth, that affect the pressure at a given point in a liquid.
  31. 31st January 1984State the name of the rule used to find the direction of the force on a current-carrying wire in a magnetic field, and name the three quantities it relates.