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Daily Practice · GCSE Science

February 1997 - GCSE Science 5-a-day

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February 1997

28 sheets · 140 questions · GCSE

February 1997 compilationAll answers

Every sheet in February 1997

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 1997State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
  2. 2nd February 1997Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
  3. 3rd February 1997A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
  4. 4th February 1997Calculate the current drawn by a 1150 W kettle on a 230 V supply.
  5. 5th February 1997State the approximate radius of a nucleus compared with the radius of an atom.
  6. 6th February 1997State the equation that links pressure, force and area.
  7. 7th February 1997In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
  8. 8th February 1997State the difference between resolution and accuracy.
  9. 9th February 1997An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
  10. 10th February 1997How do bacteria make a person feel ill?
  11. 11th February 1997Name the gland that monitors and controls blood glucose concentration.
  12. 12th February 1997Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
  13. 13th February 1997An atom has atomic number 11 and mass number 23. State the number of protons.
  14. 14th February 1997On what property are elements ordered in the modern periodic table?
  15. 15th February 1997In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
  16. 16th February 1997State whether the combustion of methane is exothermic or endothermic.
  17. 17th February 1997State the two named reactants used in the Haber process.
  18. 18th February 1997Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
  19. 19th February 1997State the equation for work done.
  20. 20th February 1997Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
  21. 21st February 1997State the relationship between pressure and volume for a fixed mass of gas at constant temperature.
  22. 22nd February 1997A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.
  23. 23rd February 1997An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
  24. 24th February 1997A satellite in a stable, small-radius, close orbit around the Earth is compared with a satellite in a stable, large-radius, distant orbit. State which of the two satellites has the greater orbital speed.
  25. 25th February 1997Where in a plant are stem cells found?
  26. 26th February 1997Name the process by which dissolved sugars are transported in the phloem.
  27. 27th February 1997Why is photosynthesis described as endothermic?
  28. 28th February 1997Give one piece of evidence that supports Darwin's theory of evolution by natural selection.