Daily Practice · GCSE Science
May 1975 5-a-day
Every sheet in May 1975
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1975Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
- 2nd May 1975Name the organ system responsible for breaking food down into small, soluble molecules.
- 3rd May 1975Define a communicable disease.
- 4th May 1975Define homeostasis.
- 5th May 1975Give one example of variation that is caused purely by the environment rather than by genes.
- 6th May 1975An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 7th May 1975Explain why potassium is more reactive than sodium.
- 8th May 1975Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 9th May 1975Give one everyday example of an endothermic process.
- 10th May 1975In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 11th May 1975A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
- 12th May 1975A device transfers 4500 J in 90 s. Calculate its power.
- 13th May 1975A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 14th May 1975Why does a bicycle pump get warm when used?
- 15th May 1975A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 16th May 1975Name the type of electromagnetic wave used by a television remote control.
- 17th May 1975Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 18th May 1975What happens to the DNA before mitosis begins?
- 19th May 1975State two conditions that increase the rate of transpiration.
- 20th May 1975A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 21st May 1975Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.
- 22nd May 1975Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 23rd May 1975State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 24th May 1975Explain why graphite conducts electricity but diamond does not.
- 25th May 1975State what is observed when magnesium ribbon is added to copper sulfate solution.
- 26th May 1975State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 27th May 1975Name the carboxylic acid produced when ethanol is oxidised.
- 28th May 1975Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 29th May 1975Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 30th May 1975A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 31st May 1975Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.