Daily Practice · GCSE Science
January 1987 5-a-day
Every sheet in January 1987
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 1987A wire of length 0.20 m carries a current of 5.0 A at right angles to a magnetic field of flux density 0.60 T. Calculate the force on the wire.
- 2nd January 1987In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 3rd January 1987Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 4th January 1987Why can HIV not be treated with antibiotics?
- 5th January 1987Explain, in terms of blood vessels, how the skin helps to cool the body when it is too hot.
- 6th January 1987Define speciation.
- 7th January 1987Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 8th January 1987State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 9th January 1987Define the limiting reactant.
- 10th January 1987Explain, in terms of bonds, why breaking bonds is an endothermic process.
- 11th January 1987State the catalyst commonly used in the Haber process.
- 12th January 1987Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
- 13th January 1987Why should you write down the equation even if you cannot finish the calculation?
- 14th January 1987In a series circuit, the current through one lamp is 0.30 A. State the current through a second lamp in the same circuit.
- 15th January 1987What causes the pressure of a gas on the walls of its container?
- 16th January 1987Define the term 'vector quantity' and give one example.
- 17th January 1987Name the type of electromagnetic wave used to treat cancer by killing cells in a tumour, and state which part of the atom emits it.
- 18th January 1987State one difference between a moon and an artificial satellite.
- 19th January 1987Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
- 20th January 1987Why are xylem cells strengthened with lignin?
- 21st January 1987Why is glucose converted into starch for storage?
- 22nd January 1987Define phenotype.
- 23rd January 1987State one way in which high biodiversity benefits an ecosystem.
- 24th January 1987Explain how painting an iron gate helps prevent it from rusting.
- 25th January 1987Why can an ionic solid not conduct electricity?
- 26th January 1987Name the salt made from zinc oxide and nitric acid.
- 27th January 1987State what is meant by a catalyst.
- 28th January 1987Name the type of biological molecule formed when amino acid monomers join together by condensation polymerisation.
- 29th January 1987Describe, in terms of wavelength, the difference between the radiation the Earth receives from the Sun and the radiation it re-emits from its surface.
- 30th January 1987Define specific heat capacity.
- 31st January 1987State what happens to the internal energy of a substance as it is heated, in terms of the kinetic and potential energy of its particles.