Daily Practice · GCSE Science
November 2002 - GCSE Science 5-a-day
Every GCSE Science sheet published in November 2002, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in November 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 2002State the general formula of the alkanes.
- 2nd November 2002State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 3rd November 2002How is the uncertainty in a set of repeated readings usually estimated?
- 4th November 2002Define electric current.
- 5th November 2002A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 6th November 2002Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 7th November 2002Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 8th November 2002Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 9th November 2002Calculate the surface area to volume ratio of a cube of side 2 cm.
- 10th November 2002Describe how phagocytes destroy pathogens in the body.
- 11th November 2002A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 12th November 2002State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 13th November 2002Give the resolution of a burette that can be read to the nearest half of a small division.
- 14th November 2002Why is an atom electrically neutral?
- 15th November 2002State the law of conservation of mass.
- 16th November 2002In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 17th November 2002State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 18th November 2002Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 19th November 2002Explain why carbon monoxide is dangerous even though it has no smell.
- 20th November 2002Why can no device be 100 percent efficient?
- 21st November 2002Why is melting described as a physical change?
- 22nd November 2002Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 23rd November 2002A wave has a period of 0.005 s. Calculate its frequency.
- 24th November 2002State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 25th November 2002Convert 0.05 mm into micrometres.
- 26th November 2002State the function of the valves in the heart and in veins.
- 27th November 2002Name the gas that is released as a product of photosynthesis.
- 28th November 2002Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 29th November 2002The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 30th November 2002Explain why potable water is not required to be chemically pure.