Daily Practice · GCSE Science
December 1965 5-a-day
Every sheet in December 1965
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1965Explain why potassium is more reactive than sodium.
- 2nd December 1965Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 3rd December 1965Give one everyday example of an endothermic process.
- 4th December 1965The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 5th December 1965A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
- 6th December 1965A device transfers 4500 J in 90 s. Calculate its power.
- 7th December 1965A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 8th December 1965Why does a bicycle pump get warm when used?
- 9th December 1965State what the gradient of a distance-time graph represents.
- 10th December 1965Explain why ultraviolet, X-rays and gamma rays can be hazardous to human health, but radio waves are not.
- 11th December 1965Explain, in terms of forces, why a satellite in a stable orbit does not fall towards the Earth or fly off into space.
- 12th December 1965What happens to the DNA before mitosis begins?
- 13th December 1965State two conditions that increase the rate of transpiration.
- 14th December 1965A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 15th December 1965In 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.
- 16th December 1965Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 17th December 1965State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 18th December 1965Explain why graphite conducts electricity but diamond does not.
- 19th December 1965State what is observed when magnesium ribbon is added to copper sulfate solution.
- 20th December 1965State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 21st December 1965State what happens to the carbon-to-carbon double bond of an alkene monomer during addition polymerisation.
- 22nd December 1965Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 23rd December 1965Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 24th December 1965A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 25th December 1965Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 26th December 1965Name the type of electromagnetic wave used to sterilise medical equipment.
- 27th December 1965A transformer has a primary current of 2.0 A and a primary voltage of 230 V. The secondary voltage is 460 V. Assuming the transformer is 100 percent efficient, calculate the secondary current.
- 28th December 1965A 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.
- 29th December 1965Where is bile made and where is it stored?
- 30th December 1965Why does a vaccinated person not usually become ill when they meet the pathogen?
- 31st December 1965Explain why reflex responses are faster than voluntary responses.