Daily Practice · GCSE Science
August 1982 5-a-day
Every sheet in August 1982
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 1982State the four factors that can increase the rate of a chemical reaction.
- 2nd August 1982Name the carboxylic acid produced when ethanol is oxidised.
- 3rd August 1982State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 4th August 1982By what factor does kinetic energy increase if speed is doubled?
- 5th August 1982Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 6th August 1982Define the term 'half-life' of a radioactive isotope.
- 7th August 1982Define the term 'wavelength' of a wave.
- 8th August 1982State the difference between an alternator and a dynamo.
- 9th August 1982Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 10th August 1982Describe the positive result of the Biuret test.
- 11th August 1982What is tested during preclinical testing?
- 12th August 1982State the type of effector that produces a physical response by contracting.
- 13th August 1982Give one example of a biotic factor that could affect a population of rabbits.
- 14th August 1982Name two methods of desalinating seawater.
- 15th August 1982Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 16th August 1982Why do companies prefer reactions with a high atom economy?
- 17th August 1982On a reaction profile diagram, the reactants are drawn at a higher energy level than the products. State whether the reaction is exothermic or endothermic.
- 18th August 1982Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
- 19th August 1982Explain why the solvent level in the container must be below the pencil baseline.
- 20th August 1982In the specific heat capacity practical, why is the block insulated?
- 21st August 1982Describe the current-potential difference graph for a filament lamp.
- 22nd August 1982State the difference between irradiation and contamination.
- 23rd August 1982State two factors that increase a driver's thinking distance.
- 24th August 1982Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
- 25th August 1982State, in one sentence, what the Big Bang model proposes about the early universe.
- 26th August 1982Name the process that moves substances against a concentration gradient.
- 27th August 1982Describe how phagocytes destroy pathogens in the body.
- 28th August 1982A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.
- 29th August 1982A man who is a known carrier of cystic fibrosis (Ff) has children with a woman who has been confirmed to carry no cystic fibrosis allele at all (FF). Explain why none of their children can have cystic fibrosis.
- 30th August 1982Why is the burette rinsed with the solution it is going to contain rather than with water?
- 31st August 1982State the relative mass and relative charge of a neutron.