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Daily Practice · GCSE Science

February 1971 5-a-day

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February 1971

28 sheets · 140 questions · GCSE

February 1971 compilationAll answers

Every sheet in February 1971

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st February 1971A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
  2. 2nd February 1971In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
  3. 3rd February 1971State the flame test colour for sodium ions.
  4. 4th February 1971Calculate the gravitational potential energy gained by a 60 kg person climbing 5 m. (g = 9.8 N/kg)
  5. 5th February 1971A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
  6. 6th February 1971A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
  7. 7th February 1971A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
  8. 8th February 1971A microwave oven uses electromagnetic waves with a wavelength of 0.12 m. Calculate the frequency of these waves (speed of light = 3 x 10^8 m/s).
  9. 9th February 1971Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
  10. 10th February 1971State three functions of mitosis.
  11. 11th February 1971What happens to guard cells when a plant is short of water?
  12. 12th February 1971Write the word equation for photosynthesis.
  13. 13th February 1971Name the three-domain system of classification, and name the scientist most associated with proposing it.
  14. 14th February 1971State one method used to try to maintain biodiversity.
  15. 15th February 1971Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
  16. 16th February 1971Why is graphite soft and slippery?
  17. 17th February 1971Explain the difference between a strong acid and a concentrated acid.
  18. 18th February 1971A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
  19. 19th February 1971State the functional group found in all alcohols.
  20. 20th February 1971Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
  21. 21st February 1971Name four energy stores.
  22. 22nd February 1971Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
  23. 23rd February 1971State one source of natural background radiation and one source of artificial (man-made) background radiation.
  24. 24th February 1971State what happens to the frequency of a wave when it is refracted as it passes into a different material.
  25. 25th February 1971State two factors that increase the size of the potential difference induced in a coil.
  26. 26th February 1971A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
  27. 27th February 1971What is an enzyme?
  28. 28th February 1971Describe phagocytosis.