Daily Practice · GCSE Science
May 1986 5-a-day
Every sheet in May 1986
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1986Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
- 2nd May 1986An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 3rd May 1986Define a communicable disease.
- 4th May 1986Name the gland that monitors and controls blood glucose concentration.
- 5th May 1986Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
- 6th May 1986An atom has atomic number 11 and mass number 23. State the number of protons.
- 7th May 1986Explain why potassium is more reactive than sodium.
- 8th May 1986Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 9th May 1986State whether the combustion of methane is exothermic or endothermic.
- 10th May 1986State the two named reactants used in the Haber process.
- 11th May 1986A 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 1986A device transfers 4500 J in 90 s. Calculate its power.
- 13th May 1986Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 14th May 1986Why does a bicycle pump get warm when used?
- 15th May 1986A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.
- 16th May 1986An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 17th May 1986A satellite in a stable, small-radius, close orbit around the Earth is compared with a satellite in a stable, large-radius, distant orbit. State which of the two satellites has the greater orbital speed.
- 18th May 1986What happens to the DNA before mitosis begins?
- 19th May 1986State two conditions that increase the rate of transpiration.
- 20th May 1986A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 21st May 1986Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 22nd May 1986Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 23rd May 1986State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 24th May 1986Explain why graphite conducts electricity but diamond does not.
- 25th May 1986State what is observed when magnesium ribbon is added to copper sulfate solution.
- 26th May 1986State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 27th May 1986Name the two methods used to produce ethanol industrially.
- 28th May 1986Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.
- 29th May 1986Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 30th May 1986State the correct SI unit for density.
- 31st May 1986Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.