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Daily Practice · GCSE Science

August 1963 5-a-day

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August 1963

31 sheets · 155 questions · GCSE

August 1963 compilationAll answers

Every sheet in August 1963

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 1963Why is an atom electrically neutral?
  2. 2nd August 1963State the law of conservation of mass.
  3. 3rd August 1963In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
  4. 4th August 1963Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
  5. 5th August 1963Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
  6. 6th August 1963Explain why carbon monoxide is dangerous even though it has no smell.
  7. 7th August 1963Why can no device be 100 percent efficient?
  8. 8th August 1963Why is melting described as a physical change?
  9. 9th August 1963State whether friction is a contact force or a non-contact force.
  10. 10th August 1963A wave has a frequency of 50 Hz. Calculate its period.
  11. 11th August 1963Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
  12. 12th August 1963Convert 0.05 mm into micrometres.
  13. 13th August 1963State the function of the valves in the heart and in veins.
  14. 14th August 1963Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
  15. 15th August 1963State one risk factor linked to type 2 diabetes.
  16. 16th August 1963The 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.
  17. 17th August 1963Give one reason distillation of seawater requires a large energy input.
  18. 18th August 1963Write the formula of calcium chloride and explain the ratio.
  19. 19th August 1963A student reacts 2.4 g of magnesium with excess dilute hydrochloric acid: Mg + 2HCl -> MgCl2 + H2. Relative atomic mass of Mg = 24. Calculate the number of moles of hydrogen gas produced.
  20. 20th August 1963Hydrogen 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.
  21. 21st August 1963Define the term 'homologous series'.
  22. 22nd August 1963Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
  23. 23rd August 1963Name the energy store associated with a moving car.
  24. 24th August 1963Give the equation linking energy transferred, charge flow and potential difference.
  25. 25th August 1963Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
  26. 26th August 1963Write down the equation that links moment, force and distance.
  27. 27th August 1963A wire of length 0.20 m carries a current of 5.0 A at right angles to a magnetic field of flux density 0.60 T. Calculate the force on the wire.
  28. 28th August 1963Why does taking repeat readings and calculating a mean improve the data?
  29. 29th August 1963State the type of large biological molecule that all enzymes are made from.
  30. 30th August 1963State two ways measles is prevented from spreading.
  31. 31st August 1963Explain, in terms of blood vessels, how the skin helps to cool the body when it is too hot.