Daily Practice · GCSE Science
August 1964 5-a-day
Every sheet in August 1964
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 1964Give the equation for wave speed and its units.
- 2nd August 1964A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 3rd August 1964Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 4th August 1964A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 5th August 1964Name the type of electromagnetic wave used by a television remote control.
- 6th August 1964Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 7th August 1964Give one risk of stem cell treatment.
- 8th August 1964Why does a potometer measure water uptake rather than transpiration directly?
- 9th August 1964Why does the rate of photosynthesis fall at very high temperatures?
- 10th August 1964Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.
- 11th August 1964Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 12th August 1964State the four stages considered in a life cycle assessment.
- 13th August 1964Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 14th August 1964Define oxidation in terms of electrons.
- 15th August 1964State two units that the rate of a reaction can be measured in.
- 16th August 1964Name the carboxylic acid produced when ethanol is oxidised.
- 17th August 1964Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 18th August 1964A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 19th August 1964A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 20th August 1964A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 21st August 1964Define the term 'wavelength' of a wave.
- 22nd August 1964State the difference between an alternator and a dynamo.
- 23rd August 1964A 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.
- 24th August 1964State two functions of bile.
- 25th August 1964What is an antigen?
- 26th August 1964State the type of effector that produces a physical response by contracting.
- 27th August 1964Give one example of a biotic factor that could affect a population of rabbits.
- 28th August 1964Name the four stages usually considered in a life cycle assessment of a product.
- 29th August 1964A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 30th August 1964State two reasons why a percentage yield is less than 100 percent.
- 31st August 1964State what is meant by the activation energy of a reaction.