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Daily Practice · GCSE Science

October 1982 5-a-day

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October 1982

31 sheets · 155 questions · GCSE

October 1982 compilationAll answers

Every sheet in October 1982

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

  1. 1st October 1982Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
  2. 2nd October 1982Write the electronic structure of an atom with 12 electrons.
  3. 3rd October 1982Why are the noble gases unreactive?
  4. 4th October 1982How many atoms are there in 0.5 mol of helium?
  5. 5th October 1982A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
  6. 6th October 1982State the two named reactants used in the Haber process.
  7. 7th October 1982Describe the test, and the positive result, for ammonium ions.
  8. 8th October 1982Convert 3.5 kJ into joules.
  9. 9th October 1982State the UK mains supply frequency and typical potential difference.
  10. 10th October 1982How is the temperature of a gas related to the motion of its molecules?
  11. 11th October 1982A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.
  12. 12th October 1982An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
  13. 13th October 1982A satellite in a stable, small-radius, close orbit around the Earth is compared with a satellite in a stable, large-radius, distant orbit. State which of the two satellites has the greater orbital speed.
  14. 14th October 1982How many pairs of chromosomes are there in a human body cell?
  15. 15th October 1982Where are most stomata found on a typical leaf, and why?
  16. 16th October 1982Name four limiting factors of photosynthesis.
  17. 17th October 1982Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
  18. 18th October 1982State what is meant by the term biodiversity.
  19. 19th October 1982Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
  20. 20th October 1982Give one use of nanoparticles and one associated risk.
  21. 21st October 1982Give the ionic equation for neutralisation.
  22. 22nd October 1982State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).
  23. 23rd October 1982Name the two methods used to produce ethanol industrially.
  24. 24th October 1982Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
  25. 25th October 1982State the equation for gravitational potential energy.
  26. 26th October 1982A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
  27. 27th October 1982Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
  28. 28th October 1982State whether sound waves are transverse or longitudinal.
  29. 29th October 1982State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
  30. 30th October 1982State one structure found in a bacterial cell but not in an animal cell.
  31. 31st October 1982Explain what happens to an enzyme above its optimum temperature.