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Daily Practice · GCSE Science

October 1986 5-a-day

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October 1986

31 sheets · 155 questions · GCSE

October 1986 compilationAll answers

Every sheet in October 1986

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 1986Explain why potable water is not required to be chemically pure.
  2. 2nd October 1986What type of bonding is present in a compound formed between a metal and a non-metal?
  3. 3rd October 1986State the name given to a reaction in which a substance loses electrons.
  4. 4th October 1986State the two substances that react inside a hydrogen fuel cell.
  5. 5th October 1986State the type of reaction that occurs when bromine adds across the double bond of an alkene.
  6. 6th October 1986Give two processes that removed carbon dioxide from the early atmosphere.
  7. 7th October 1986Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
  8. 8th October 1986State the potential difference and frequency of the UK mains supply.
  9. 9th October 1986What did Bohr add to the nuclear model?
  10. 10th October 1986Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
  11. 11th October 1986State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
  12. 12th October 1986Why must the same volume of solution be used in every tube in an enzyme investigation?
  13. 13th October 1986Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
  14. 14th October 1986Describe the symptoms of rose black spot and its effect on the plant.
  15. 15th October 1986A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
  16. 16th October 1986Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
  17. 17th October 1986Write the electronic structure of an atom with 12 electrons.
  18. 18th October 1986Why did Mendeleev leave gaps in his table?
  19. 19th October 1986Calculate the mass of 0.25 mol of sodium hydroxide, NaOH. (Na = 23, O = 16, H = 1)
  20. 20th October 1986A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
  21. 21st October 1986State what is meant by dynamic equilibrium.
  22. 22nd October 1986State the flame test colour for sodium ions.
  23. 23rd October 1986Calculate the gravitational potential energy gained by a 60 kg person climbing 5 m. (g = 9.8 N/kg)
  24. 24th October 1986State the UK mains supply frequency and typical potential difference.
  25. 25th October 1986A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
  26. 26th October 1986A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
  27. 27th October 1986State the seven regions of the electromagnetic spectrum in order of increasing frequency.
  28. 28th October 1986State what provides the centripetal force that keeps a planet in orbit around the Sun.
  29. 29th October 1986State three functions of mitosis.
  30. 30th October 1986What happens to guard cells when a plant is short of water?
  31. 31st October 1986Write the word equation for photosynthesis.