Daily Practice · GCSE Science
November 1992 5-a-day
Every sheet in November 1992
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1992A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 2nd November 1992State two ways of increasing the force produced by a motor effect setup, for a wire of fixed length at a fixed angle to the field.
- 3rd November 1992A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.
- 4th November 1992Name the organ system responsible for breaking food down into small, soluble molecules.
- 5th November 1992Give one way of reducing the spread of malaria.
- 6th November 1992Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 7th November 1992Define mutation.
- 8th November 1992An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 9th November 1992Why do elements in the same group have similar chemical properties?
- 10th November 1992Why is the amount of product directly proportional to the amount of limiting reactant?
- 11th November 1992Give one everyday example of an endothermic process.
- 12th November 1992The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 13th November 1992A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 14th November 1992Give the equation for wave speed and its units.
- 15th November 1992A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 16th November 1992Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 17th November 1992State what the gradient of a distance-time graph represents.
- 18th November 1992Explain why ultraviolet, X-rays and gamma rays can be hazardous to human health, but radio waves are not.
- 19th November 1992Explain, in terms of forces, why a satellite in a stable orbit does not fall towards the Earth or fly off into space.
- 20th November 1992Give one risk of stem cell treatment.
- 21st November 1992Why does a potometer measure water uptake rather than transpiration directly?
- 22nd November 1992Why does the rate of photosynthesis fall at very high temperatures?
- 23rd November 1992In pea plants, the allele for tall stems (T) is dominant over the allele for short stems (t). A homozygous tall plant (TT) is crossed with a homozygous short plant (tt). State the genotype and phenotype of all the offspring.
- 24th November 1992Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 25th November 1992State the four stages considered in a life cycle assessment.
- 26th November 1992Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 27th November 1992Define oxidation in terms of electrons.
- 28th November 1992State two units that the rate of a reaction can be measured in.
- 29th November 1992State what happens to the carbon-to-carbon double bond of an alkene monomer during addition polymerisation.
- 30th November 1992Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.