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Daily Practice · GCSE Science

August 1989 5-a-day

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August 1989

31 sheets · 155 questions · GCSE

August 1989 compilationAll answers

Every sheet in August 1989

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

  1. 1st August 1989Calculate the concentration in moles per cubic decimetre of a solution containing 0.5 mol in 250 cubic centimetres.
  2. 2nd August 1989State the energy transfer that occurs during an endothermic reaction.
  3. 3rd August 1989Hexadecane (C16H34) is cracked to produce dodecane (C12H26) and one other product. Calculate the molecular formula of the other product.
  4. 4th August 1989A sample produces only one spot when run in three different solvents. What does this suggest about the sample?
  5. 5th August 1989Why should a line of best fit be drawn rather than joining the plotted points?
  6. 6th August 1989In a parallel circuit, how do the branch currents relate to the total current?
  7. 7th August 1989State the approximate radius of an atom.
  8. 8th August 1989A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
  9. 9th August 1989State the difference between a permanent magnet and an induced magnet.
  10. 10th August 1989State whether a galaxy moving towards Earth would show a red-shift or a blue-shift in its light.
  11. 11th August 1989Give one adaptation of a root hair cell for absorbing mineral ions.
  12. 12th August 1989A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
  13. 13th August 1989State two things excess glucose can be converted into for storage in the human body.
  14. 14th August 1989Define homozygous.
  15. 15th August 1989Why is a polystyrene cup with a lid used in energy-change experiments?
  16. 16th August 1989Write the electronic structure of a magnesium atom (12 electrons).
  17. 17th August 1989A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.
  18. 18th August 1989Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
  19. 19th August 1989A 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.
  20. 20th August 1989Name the gas that relights a glowing splint.
  21. 21st August 1989Name two gases that dissolve in atmospheric water droplets to cause acid rain.
  22. 22nd August 1989Define power and give its unit.
  23. 23rd August 1989Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
  24. 24th August 1989A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
  25. 25th August 1989State the difference between a transverse wave and a longitudinal wave.
  26. 26th August 1989Name the force that keeps the planets in orbit around the Sun.
  27. 27th August 1989Give one advantage of a light microscope over an electron microscope.
  28. 28th August 1989Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
  29. 29th August 1989State three factors that can limit the rate of photosynthesis.
  30. 30th August 1989Explain why sweating cools the body down.
  31. 31st August 1989Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.