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Daily Practice · GCSE Science

July 1977 5-a-day

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July 1977

31 sheets · 155 questions · GCSE

July 1977 compilationAll answers

Every sheet in July 1977

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 1977In the rate experiment where a cross disappears, why is the result subjective?
  2. 2nd July 1977An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
  3. 3rd July 1977Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
  4. 4th July 1977Aqueous copper sulfate solution is electrolysed using inert graphite electrodes. State the products formed at (a) the cathode and (b) the anode, giving a reason for each.
  5. 5th July 1977In the disappearing cross required practical, state the dependent variable that is measured.
  6. 6th July 1977A solid gives a lilac flame test. Name the metal ion present.
  7. 7th July 1977Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
  8. 8th July 1977Give the equation for efficiency in terms of energy.
  9. 9th July 1977Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
  10. 10th July 1977A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
  11. 11th July 1977A water wave has a wavelength of 0.4 m and a frequency of 2.5 Hz. Calculate its speed.
  12. 12th July 1977Explain how elements heavier than iron, such as gold, are created and distributed through the universe.
  13. 13th July 1977State the function of the mitochondria.
  14. 14th July 1977Which component of blood transports carbon dioxide, urea and hormones?
  15. 15th July 1977State three factors that can limit the rate of photosynthesis.
  16. 16th July 1977State the type of diabetes in which the pancreas produces little or no insulin.
  17. 17th July 1977A student places ten 1 m x 1 m quadrats at random across a school field of area 3000 m2 and counts a total of 45 dandelions across all ten quadrats. Estimate the total number of dandelions on the field.
  18. 18th July 1977Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
  19. 19th July 1977Why can metals conduct electricity when solid?
  20. 20th July 1977Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
  21. 21st July 1977State whether forming a new chemical bond requires energy or releases energy.
  22. 22nd July 1977Describe the colour change seen when an alkene is shaken with bromine water.
  23. 23rd July 1977Name three greenhouse gases.
  24. 24th July 1977A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
  25. 25th July 1977What is the difference between alternating and direct current?
  26. 26th July 1977What observation showed that the atom is mostly empty space?
  27. 27th July 1977State the name of the upward force acting on an object placed in a fluid.
  28. 28th July 1977A current-carrying wire experiences a force of 1.2 N when placed at right angles to a magnetic field of flux density 0.40 T, carrying a current of 6.0 A. Calculate the length of wire in the field.
  29. 29th July 1977In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
  30. 30th July 1977Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
  31. 31st July 1977Why can HIV not be treated with antibiotics?