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Daily Practice · GCSE Science

March 1987 5-a-day

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March 1987

31 sheets · 155 questions · GCSE

March 1987 compilationAll answers

Every sheet in March 1987

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 1987In the gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.
  2. 2nd March 1987Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
  3. 3rd March 1987Explain why carbon monoxide is dangerous even though it has no smell.
  4. 4th March 1987Why can no device be 100 percent efficient?
  5. 5th March 1987Why is melting described as a physical change?
  6. 6th March 1987A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
  7. 7th March 1987A wave travels from air into glass and slows down. State what happens to its direction, and explain why in terms of wavelength.
  8. 8th March 1987State what a nebula is, and explain its role in the life cycle of a star.
  9. 9th March 1987Convert 0.05 mm into micrometres.
  10. 10th March 1987State the function of the valves in the heart and in veins.
  11. 11th March 1987A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
  12. 12th March 1987Name the hormone released by the adrenal glands that prepares the body for fight or flight.
  13. 13th March 1987The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
  14. 14th March 1987Classify crude oil as finite or renewable, and justify your answer.
  15. 15th March 1987Write the formula of calcium chloride and explain the ratio.
  16. 16th March 1987Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
  17. 17th March 1987Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
  18. 18th March 1987State the general formula of the alkenes.
  19. 19th March 1987Give two human activities that increase the amount of greenhouse gases in the atmosphere.
  20. 20th March 1987A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
  21. 21st March 1987Give the equation linking energy transferred, charge flow and potential difference.
  22. 22nd March 1987Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
  23. 23rd March 1987A box of weight 120 N has a base area of 0.40 m^2. Calculate the pressure it exerts on the ground.
  24. 24th March 1987Explain why a current-carrying wire positioned exactly parallel to a magnetic field experiences no force.
  25. 25th March 1987Why does taking repeat readings and calculating a mean improve the data?
  26. 26th March 1987State two ways that bile aids the digestion of fats.
  27. 27th March 1987State two ways measles is prevented from spreading.
  28. 28th March 1987Name the three parts common to every homeostatic control system.
  29. 29th March 1987State one advantage and one disadvantage of selective breeding in farm animals.
  30. 30th March 1987State the relative charge of a neutron.
  31. 31st March 1987Give two observations when lithium is added to water.