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Daily Practice · GCSE Science

July 1972 5-a-day

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July 1972

31 sheets · 155 questions · GCSE

July 1972 compilationAll answers

Every sheet in July 1972

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

  1. 1st July 1972State two ways of inducing a potential difference across a conductor using a magnetic field.
  2. 2nd July 1972A 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).
  3. 3rd July 1972State two functions of bile.
  4. 4th July 1972What is an antigen?
  5. 5th July 1972A ruler is released and falls 20 cm before being caught. Using distance = 0.5 x g x time^2 with g = 9.8 m/s^2, calculate the reaction time, to 3 significant figures.
  6. 6th July 1972Name the equipment used to measure the abundance of a small plant species within a sample area.
  7. 7th July 1972State the two main steps used to produce potable water from a fresh water source.
  8. 8th July 1972State the charge on a calcium ion (Group 2).
  9. 9th July 1972State two reasons why a percentage yield is less than 100 percent.
  10. 10th July 1972State what is meant by the activation energy of a reaction.
  11. 11th July 1972Define the term 'hydrocarbon'.
  12. 12th July 1972Explain why the baseline is drawn in pencil rather than ink.
  13. 13th July 1972Give one reason for taking the gradient from the line of best fit rather than from two data points.
  14. 14th July 1972State the equation linking potential difference, current and resistance.
  15. 15th July 1972Define half-life.
  16. 16th July 1972A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
  17. 17th July 1972A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
  18. 18th July 1972Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
  19. 19th July 1972Define osmosis.
  20. 20th July 1972Name the vector that spreads the protist pathogen that causes malaria.
  21. 21st July 1972Explain, in terms of respiration, why a build-up of lactic acid causes muscle fatigue during vigorous exercise.
  22. 22nd July 1972A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
  23. 23rd July 1972A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
  24. 24th July 1972Why do isotopes of an element react in the same way?
  25. 25th July 1972Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
  26. 26th July 1972In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
  27. 27th July 1972Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
  28. 28th July 1972State the reagent added, and the result, that shows a white solid contains sulfate ions.
  29. 29th July 1972State the two products of the complete combustion of a hydrocarbon fuel.
  30. 30th July 1972State one way to increase the efficiency of a motor.
  31. 31st July 1972Why is the density of a gas much lower than that of the same substance as a liquid?