Daily Practice · GCSE Science
May 2002 - GCSE Science 5-a-day
Every GCSE Science sheet published in May 2002, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in May 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2002State the four stages considered in a life cycle assessment.
- 2nd May 2002Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 3rd May 2002Define oxidation in terms of electrons.
- 4th May 2002State two units that the rate of a reaction can be measured in.
- 5th May 2002Name the carboxylic acid produced when ethanol is oxidised.
- 6th May 2002Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 7th May 2002A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 8th May 2002A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 9th May 2002A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 10th May 2002Define the term 'wavelength' of a wave.
- 11th May 2002State the difference between an alternator and a dynamo.
- 12th May 2002A cube-shaped model cell has sides of length 3 cm. Calculate the surface area to volume ratio of the cube. Give your answer in the form n : 1.
- 13th May 2002State two functions of bile.
- 14th May 2002What is an antigen?
- 15th May 2002State the type of effector that produces a physical response by contracting.
- 16th May 2002Give one example of a biotic factor that could affect a population of rabbits.
- 17th May 2002Name the four stages usually considered in a life cycle assessment of a product.
- 18th May 2002A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 19th May 2002State two reasons why a percentage yield is less than 100 percent.
- 20th May 2002State what is meant by the activation energy of a reaction.
- 21st May 2002Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
- 22nd May 2002Explain why the baseline is drawn in pencil rather than ink.
- 23rd May 2002Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 24th May 2002State the equation linking potential difference, current and resistance.
- 25th May 2002Define half-life.
- 26th May 2002State two factors that increase a driver's thinking distance.
- 27th May 2002Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
- 28th May 2002State, in one sentence, what the Big Bang model proposes about the early universe.
- 29th May 2002Define osmosis.
- 30th May 2002Which type of pathogen causes athlete's foot, a fungal skin infection?
- 31st May 2002A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.