Daily Practice · GCSE Science
April 2001 - GCSE Science 5-a-day
Every GCSE Science sheet published in April 2001, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in April 2001
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 2001Name the equipment used to measure the abundance of a small plant species within a sample area.
- 2nd April 2001State one benefit of recycling metal rather than extracting new metal from its ore.
- 3rd April 2001Name the three types of strong chemical bonding.
- 4th April 2001Give the formula for atom economy.
- 5th April 2001Explain, in terms of the reaction pathway, why adding a catalyst increases the rate of a reaction without changing the overall energy change of the reaction.
- 6th April 2001Define the term 'hydrocarbon'.
- 7th April 2001State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 8th April 2001How is the uncertainty in a set of repeated readings usually estimated?
- 9th April 2001Define electric current.
- 10th April 2001A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 11th April 2001A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
- 12th April 2001A 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.
- 13th April 2001Explain 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.
- 14th April 2001Calculate the surface area to volume ratio of a cube of side 2 cm.
- 15th April 2001State one way that pathogens can be spread from person to person.
- 16th April 2001Explain, in terms of respiration, why a build-up of lactic acid causes muscle fatigue during vigorous exercise.
- 17th April 2001A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
- 18th April 2001Give the resolution of a burette that can be read to the nearest half of a small division.
- 19th April 2001Why is an atom electrically neutral?
- 20th April 2001State the law of conservation of mass.
- 21st April 2001In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
- 22nd April 2001Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
- 23rd April 2001Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 24th April 2001Explain why carbon monoxide is dangerous even though it has no smell.
- 25th April 2001Why can no device be 100 percent efficient?
- 26th April 2001Why is melting described as a physical change?
- 27th April 2001State whether friction is a contact force or a non-contact force.
- 28th April 2001A wave has a frequency of 50 Hz. Calculate its period.
- 29th April 2001Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
- 30th April 2001Convert 0.05 mm into micrometres.