Daily Practice · GCSE Science
May 1972 5-a-day
Every sheet in May 1972
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1972State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 2nd May 1972Why is a polystyrene cup with a lid used in energy-change experiments?
- 3rd May 1972Write the electronic structure of a magnesium atom (12 electrons).
- 4th May 1972A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.
- 5th May 1972In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 6th May 1972State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 7th May 1972Name the gas that relights a glowing splint.
- 8th May 1972Name two gases that dissolve in atmospheric water droplets to cause acid rain.
- 9th May 1972Define power and give its unit.
- 10th May 1972Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 11th May 1972A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 12th May 1972A wave has a period of 0.005 s. Calculate its frequency.
- 13th May 1972State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 14th May 1972Give one advantage of a light microscope over an electron microscope.
- 15th May 1972Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 16th May 1972A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
- 17th May 1972Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 18th May 1972Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
- 19th May 1972Classify crude oil as finite or renewable, and justify your answer.
- 20th May 1972Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 21st May 1972Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
- 22nd May 1972State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 23rd May 1972State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 24th May 1972Give two human activities that increase the amount of greenhouse gases in the atmosphere.
- 25th May 1972A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
- 26th May 1972Give the colour and function of the earth wire.
- 27th May 1972What observation showed the nucleus is positively charged and very small?
- 28th May 1972Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 29th May 1972State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 30th May 1972A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.
- 31st May 1972State two ways that bile aids the digestion of fats.