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Daily Practice · GCSE Science

October 1979 5-a-day

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October 1979

31 sheets · 155 questions · GCSE

October 1979 compilationAll answers

Every sheet in October 1979

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

  1. 1st October 1979A sealed flask containing 12.0 g of reactants is shaken and a reaction occurs. What is the total mass afterwards?
  2. 2nd October 1979In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
  3. 3rd October 1979Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
  4. 4th October 1979State the difference between a pure substance and a formulation.
  5. 5th October 1979Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.
  6. 6th October 1979Name three renewable energy resources.
  7. 7th October 1979State the equation for density.
  8. 8th October 1979State whether friction is a contact force or a non-contact force.
  9. 9th October 1979A wave has a frequency of 50 Hz. Calculate its period.
  10. 10th October 1979Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
  11. 11th October 1979Why is a stain such as iodine used when preparing a slide?
  12. 12th October 1979Give two adaptations of a red blood cell.
  13. 13th October 1979Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
  14. 14th October 1979State one risk factor linked to type 2 diabetes.
  15. 15th October 1979Explain why a pyramid of biomass is never wider at the top than at the bottom.
  16. 16th October 1979Give one reason distillation of seawater requires a large energy input.
  17. 17th October 1979Define a covalent bond.
  18. 18th October 1979A 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.
  19. 19th October 1979State the difference between a rechargeable cell and a non-rechargeable cell.
  20. 20th October 1979Define the term 'homologous series'.
  21. 21st October 1979Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
  22. 22nd October 1979Name the energy store associated with a moving car.
  23. 23rd October 1979Calculate the current drawn by a 1150 W kettle on a 230 V supply.
  24. 24th October 1979State the approximate radius of a nucleus compared with the radius of an atom.
  25. 25th October 1979Write down the equation that links moment, force and distance.
  26. 26th October 1979A 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.
  27. 27th October 1979State the difference between resolution and accuracy.
  28. 28th October 1979State the type of large biological molecule that all enzymes are made from.
  29. 29th October 1979How do bacteria make a person feel ill?
  30. 30th October 1979Explain, in terms of blood vessels, how the skin helps to cool the body when it is too hot.
  31. 31st October 1979Define speciation.