Daily Practice · GCSE Science
August 1954 5-a-day
Every sheet in August 1954
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 1954A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
- 2nd August 1954Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
- 3rd August 1954Why does active transport require energy?
- 4th August 1954A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
- 5th August 1954Explain, in terms of respiration, why a build-up of lactic acid causes muscle fatigue during vigorous exercise.
- 6th August 1954A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
- 7th August 1954Name one way to make a rate of reaction experiment more valid rather than simply more precise.
- 8th August 1954Define an isotope.
- 9th August 1954A sealed flask containing 12.0 g of reactants is shaken and a reaction occurs. What is the total mass afterwards?
- 10th August 1954In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
- 11th August 1954Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
- 12th August 1954State the difference between a pure substance and a formulation.
- 13th August 1954Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.
- 14th August 1954Name three renewable energy resources.
- 15th August 1954State the equation for density.
- 16th August 1954A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 17th August 1954A wave has a frequency of 50 Hz. Calculate its period.
- 18th August 1954Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
- 19th August 1954Why is a stain such as iodine used when preparing a slide?
- 20th August 1954Give two adaptations of a red blood cell.
- 21st August 1954State three factors that can limit the rate of photosynthesis.
- 22nd August 1954State one risk factor linked to type 2 diabetes.
- 23rd August 1954Explain why a pyramid of biomass is never wider at the top than at the bottom.
- 24th August 1954Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 25th August 1954Define a covalent bond.
- 26th August 1954Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 27th August 1954State the difference between a rechargeable cell and a non-rechargeable cell.
- 28th August 1954Define the term 'homologous series'.
- 29th August 1954Name three greenhouse gases.
- 30th August 1954A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 31st August 1954Calculate the current drawn by a 1150 W kettle on a 230 V supply.