Revision Library
/Subjects/Science/Daily Practice
Daily Practice · GCSE Science

June 1971 5-a-day

← Today's GCSE Science sheet

June 1971

30 sheets · 150 questions · GCSE

June 1971 compilationAll answers

Every sheet in June 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 June 1971A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
  2. 2nd June 1971Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
  3. 3rd June 1971State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
  4. 4th June 1971State what red-shift shows about the motion of most distant galaxies.
  5. 5th June 1971Calculate the surface area to volume ratio of a cube of side 2 cm.
  6. 6th June 1971Which type of pathogen causes athlete's foot, a fungal skin infection?
  7. 7th June 1971State the word equation for aerobic respiration.
  8. 8th June 1971State one ethical concern raised by embryo screening.
  9. 9th June 1971Give the resolution of a burette that can be read to the nearest half of a small division.
  10. 10th June 1971Why is an atom electrically neutral?
  11. 11th June 1971State the law of conservation of mass.
  12. 12th June 1971State the name given to the negative electrode in electrolysis.
  13. 13th June 1971Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
  14. 14th June 1971Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
  15. 15th June 1971Explain why carbon monoxide is dangerous even though it has no smell.
  16. 16th June 1971Why can no device be 100 percent efficient?
  17. 17th June 1971Why is melting described as a physical change?
  18. 18th June 1971A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
  19. 19th June 1971Explain, in terms of particle motion, why a wave can transfer energy without transferring matter.
  20. 20th June 1971Name the region of the Solar System where most asteroids are found.
  21. 21st June 1971Convert 0.05 mm into micrometres.
  22. 22nd June 1971State the function of the valves in the heart and in veins.
  23. 23rd June 1971Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
  24. 24th June 1971A person's blood glucose concentration is 4.8 mmol/dm^3 before breakfast and 7.2 mmol/dm^3 after breakfast. Calculate the increase in blood glucose concentration.
  25. 25th June 1971The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
  26. 26th June 1971State what is meant by sustainable development.
  27. 27th June 1971Write the formula of calcium chloride and explain the ratio.
  28. 28th June 1971State the pH value of a neutral solution.
  29. 29th June 1971Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
  30. 30th June 1971Propene (C3H6) reacts with steam in the presence of a catalyst. Name the catalyst, and name the type of compound formed.