Daily Practice · GCSE Science
November 1969 5-a-day
Every sheet in November 1969
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1969State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 2nd November 1969How is the uncertainty in a set of repeated readings usually estimated?
- 3rd November 1969Define electric current.
- 4th November 1969A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 5th November 1969A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
- 6th November 1969State the difference between a permanent magnet and an induced magnet.
- 7th November 1969State whether a galaxy moving towards Earth would show a red-shift or a blue-shift in its light.
- 8th November 1969Calculate the surface area to volume ratio of a cube of side 2 cm.
- 9th November 1969Name the vector that spreads the protist pathogen that causes malaria.
- 10th November 1969State two things excess glucose can be converted into for storage in the human body.
- 11th November 1969Define homozygous.
- 12th November 1969Give the resolution of a burette that can be read to the nearest half of a small division.
- 13th November 1969Why is an atom electrically neutral?
- 14th November 1969State the law of conservation of mass.
- 15th November 1969Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
- 16th November 1969A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
- 17th November 1969Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 18th November 1969Explain why carbon monoxide is dangerous even though it has no smell.
- 19th November 1969Why can no device be 100 percent efficient?
- 20th November 1969Why is melting described as a physical change?
- 21st November 1969A gardener pushes a mower with a force of 60 N through a distance of 8.0 m. Calculate the work done. Use W = F x s.
- 22nd November 1969State the difference between a transverse wave and a longitudinal wave.
- 23rd November 1969Name the force that keeps the planets in orbit around the Sun.
- 24th November 1969Convert 0.05 mm into micrometres.
- 25th November 1969State the function of the valves in the heart and in veins.
- 26th November 1969Name the organelle in a plant cell where photosynthesis takes place.
- 27th November 1969Explain why sweating cools the body down.
- 28th November 1969The 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.
- 29th November 1969Name one method used to sterilise fresh water during the production of potable water.
- 30th November 1969Write the formula of calcium chloride and explain the ratio.