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Daily Practice · GCSE Science

March 1979 5-a-day

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March 1979

31 sheets · 155 questions · GCSE

March 1979 compilationAll answers

Every sheet in March 1979

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

  1. 1st March 1979State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
  2. 2nd March 1979Define the limiting reactant.
  3. 3rd March 1979A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
  4. 4th March 1979State the two named reactants used in the Haber process.
  5. 5th March 1979Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
  6. 6th March 1979Why should you write down the equation even if you cannot finish the calculation?
  7. 7th March 1979A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
  8. 8th March 1979What causes the pressure of a gas on the walls of its container?
  9. 9th March 1979A 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.
  10. 10th March 1979An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
  11. 11th March 1979A 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.
  12. 12th March 1979Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
  13. 13th March 1979Why are xylem cells strengthened with lignin?
  14. 14th March 1979Why is glucose converted into starch for storage?
  15. 15th March 1979Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
  16. 16th March 1979State one way in which high biodiversity benefits an ecosystem.
  17. 17th March 1979Explain how painting an iron gate helps prevent it from rusting.
  18. 18th March 1979Why can an ionic solid not conduct electricity?
  19. 19th March 1979Name the salt made from zinc oxide and nitric acid.
  20. 20th March 1979State what is meant by a catalyst.
  21. 21st March 1979Name the two methods used to produce ethanol industrially.
  22. 22nd March 1979Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
  23. 23rd March 1979Define specific heat capacity.
  24. 24th March 1979Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
  25. 25th March 1979State the number of protons and the number of neutrons in an alpha particle.
  26. 26th March 1979State whether sound waves are transverse or longitudinal.
  27. 27th March 1979State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
  28. 28th March 1979A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
  29. 29th March 1979Why does a food test for sugars need a water bath?
  30. 30th March 1979Explain what is meant by a double blind trial.
  31. 31st March 1979State why a reflex action is described as involuntary.