Revision Library
/Subjects/Science/Daily Practice
Daily Practice · GCSE Science

January 1962 5-a-day

← Today's GCSE Science sheet

January 1962

31 sheets · 155 questions · GCSE

January 1962 compilationAll answers

Every sheet in January 1962

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

  1. 1st January 1962Define oxygen debt.
  2. 2nd January 1962Explain one benefit of the Human Genome Project.
  3. 3rd January 1962Give the resolution of a burette that can be read to the nearest half of a small division.
  4. 4th January 1962Why is an atom electrically neutral?
  5. 5th January 1962State the law of conservation of mass.
  6. 6th January 1962Explain why solid sodium chloride does not conduct electricity, but molten sodium chloride does.
  7. 7th January 1962In the gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.
  8. 8th January 1962Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
  9. 9th January 1962Explain why carbon monoxide is dangerous even though it has no smell.
  10. 10th January 1962Why can no device be 100 percent efficient?
  11. 11th January 1962Why is melting described as a physical change?
  12. 12th January 1962A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
  13. 13th January 1962A wave travels from air into glass and slows down. State what happens to its direction, and explain why in terms of wavelength.
  14. 14th January 1962State what a nebula is, and explain its role in the life cycle of a star.
  15. 15th January 1962Convert 0.05 mm into micrometres.
  16. 16th January 1962State the function of the valves in the heart and in veins.
  17. 17th January 1962Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
  18. 18th January 1962Name the hormone released by the adrenal glands that prepares the body for fight or flight.
  19. 19th January 1962The 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.
  20. 20th January 1962State what is meant by sustainable development.
  21. 21st January 1962Write the formula of calcium chloride and explain the ratio.
  22. 22nd January 1962State the pH value of a neutral solution.
  23. 23rd January 1962Hydrogen 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.
  24. 24th January 1962State the general formula of the alkenes.
  25. 25th January 1962Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
  26. 26th January 1962A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
  27. 27th January 1962Give the equation linking energy transferred, charge flow and potential difference.
  28. 28th January 1962Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
  29. 29th January 1962A box of weight 120 N has a base area of 0.40 m^2. Calculate the pressure it exerts on the ground.
  30. 30th January 1962Explain why a current-carrying wire positioned exactly parallel to a magnetic field experiences no force.
  31. 31st January 1962Why does taking repeat readings and calculating a mean improve the data?