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

January 1993 5-a-day

← Today's GCSE Science sheet

January 1993

31 sheets · 155 questions · GCSE

January 1993 compilationAll answers

Every sheet in January 1993

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

  1. 1st January 1993State the reagent added, and the result, that shows a white solid contains sulfate ions.
  2. 2nd January 1993State the two products of the complete combustion of a hydrocarbon fuel.
  3. 3rd January 1993State one way to increase the efficiency of a motor.
  4. 4th January 1993Why is the density of a gas much lower than that of the same substance as a liquid?
  5. 5th January 1993A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
  6. 6th January 1993Explain, in terms of particle motion, why a wave can transfer energy without transferring matter.
  7. 7th January 1993Name the region of the Solar System where most asteroids are found.
  8. 8th January 1993Name two structures found in a plant cell but not in an animal cell.
  9. 9th January 1993Why is the wall of the left ventricle thicker than that of the right ventricle?
  10. 10th January 1993Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
  11. 11th January 1993A 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.
  12. 12th January 1993State one abiotic factor that can affect the population of fish living in a pond.
  13. 13th January 1993State what is meant by sustainable development.
  14. 14th January 1993What type of bonding is present in a compound formed between a metal and a non-metal?
  15. 15th January 1993State the pH value of a neutral solution.
  16. 16th January 1993State the two substances that react inside a hydrogen fuel cell.
  17. 17th January 1993Propene (C3H6) reacts with steam in the presence of a catalyst. Name the catalyst, and name the type of compound formed.
  18. 18th January 1993Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
  19. 19th January 1993A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
  20. 20th January 1993State the potential difference and frequency of the UK mains supply.
  21. 21st January 1993What did Bohr add to the nuclear model?
  22. 22nd January 1993State two factors, other than depth, that affect the pressure at a given point in a liquid.
  23. 23rd January 1993State the name of the rule used to find the direction of the force on a current-carrying wire in a magnetic field, and name the three quantities it relates.
  24. 24th January 1993Why must the same volume of solution be used in every tube in an enzyme investigation?
  25. 25th January 1993An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
  26. 26th January 1993Describe the symptoms of rose black spot and its effect on the plant.
  27. 27th January 1993State what is meant by negative feedback.
  28. 28th January 1993Name the scientist who proposed the three-domain system of classification, and name the three domains.
  29. 29th January 1993An atom has atomic number 11 and mass number 23. State the number of protons.
  30. 30th January 1993Why did Mendeleev leave gaps in his table?
  31. 31st January 1993Calculate the mass of 0.25 mol of sodium hydroxide, NaOH. (Na = 23, O = 16, H = 1)