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Daily Practice · GCSE Science

March 1984 5-a-day

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March 1984

31 sheets · 155 questions · GCSE

March 1984 compilationAll answers

Every sheet in March 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 March 1984A 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.
  2. 2nd March 1984Define the term 'half-life' of a radioactive isotope.
  3. 3rd March 1984State the speed at which all electromagnetic waves travel through a vacuum.
  4. 4th March 1984A transformer has 500 turns on its primary coil and 2500 turns on its secondary coil. State, with a reason, whether this is a step-up or a step-down transformer.
  5. 5th March 1984State one structure found in a bacterial cell but not in an animal cell.
  6. 6th March 1984Describe the positive result of the Biuret test.
  7. 7th March 1984What is tested during preclinical testing?
  8. 8th March 1984Name the two parts of the central nervous system (CNS).
  9. 9th March 1984Name the group of organisms that break down dead plant and animal matter, returning mineral ions to the soil.
  10. 10th March 1984Define a finite resource, giving one example.
  11. 11th March 1984State one reason why simple covalent substances such as chlorine have low melting points.
  12. 12th March 1984Why do companies prefer reactions with a high atom economy?
  13. 13th March 1984On a reaction profile diagram, the reactants are drawn at a higher energy level than the products. State whether the reaction is exothermic or endothermic.
  14. 14th March 1984Hexadecane (C16H34) is cracked to produce dodecane (C12H26) and one other product. Calculate the molecular formula of the other product.
  15. 15th March 1984Explain why the solvent level in the container must be below the pencil baseline.
  16. 16th March 1984In the specific heat capacity practical, why is the block insulated?
  17. 17th March 1984Describe the current-potential difference graph for a filament lamp.
  18. 18th March 1984State the difference between irradiation and contamination.
  19. 19th March 1984A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
  20. 20th March 1984State the difference between a permanent magnet and an induced magnet.
  21. 21st March 1984State whether a galaxy moving towards Earth would show a red-shift or a blue-shift in its light.
  22. 22nd March 1984Name the process that moves substances against a concentration gradient.
  23. 23rd March 1984A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
  24. 24th March 1984State two things excess glucose can be converted into for storage in the human body.
  25. 25th March 1984Define homozygous.
  26. 26th March 1984Why is the burette rinsed with the solution it is going to contain rather than with water?
  27. 27th March 1984State the relative mass and relative charge of a neutron.
  28. 28th March 1984Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
  29. 29th March 1984Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
  30. 30th March 1984A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
  31. 31st March 1984Which reagent is added, and in what colour change, to test for chlorine gas?