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Daily Practice · GCSE Science

October 1994 - GCSE Science 5-a-day

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October 1994

31 sheets · 155 questions · GCSE

October 1994 compilationAll answers

Every sheet in October 1994

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

  1. 1st October 1994A student reacts excess zinc powder with 25 cm3 of copper sulfate solution in a polystyrene cup. The starting temperature is 21.0 degrees C and the maximum temperature reached is 58.5 degrees C. Calculate the temperature change.
  2. 2nd October 1994Name the two industrial methods of cracking.
  3. 3rd October 1994State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
  4. 4th October 1994Distinguish repeatability from reproducibility.
  5. 5th October 1994How does the resistance of a thermistor change as it gets hotter?
  6. 6th October 1994What is an alpha particle made of?
  7. 7th October 1994Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
  8. 8th October 1994State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
  9. 9th October 1994State what red-shift shows about the motion of most distant galaxies.
  10. 10th October 1994Explain why a plant cell placed in pure water does not burst.
  11. 11th October 1994Describe how phagocytes destroy pathogens in the body.
  12. 12th October 1994State the word equation for aerobic respiration.
  13. 13th October 1994State one ethical concern raised by embryo screening.
  14. 14th October 1994In the rate experiment where a cross disappears, why is the result subjective?
  15. 15th October 1994An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
  16. 16th October 1994Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
  17. 17th October 1994State the name given to the negative electrode in electrolysis.
  18. 18th October 1994Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
  19. 19th October 1994A solid gives a lilac flame test. Name the metal ion present.
  20. 20th October 1994Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
  21. 21st October 1994Give the equation for efficiency in terms of energy.
  22. 22nd October 1994Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
  23. 23rd October 1994Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
  24. 24th October 1994Explain, in terms of particle motion, why a wave can transfer energy without transferring matter.
  25. 25th October 1994Name the region of the Solar System where most asteroids are found.
  26. 26th October 1994State the function of the mitochondria.
  27. 27th October 1994Which component of blood transports carbon dioxide, urea and hormones?
  28. 28th October 1994Name the gas that is released as a product of photosynthesis.
  29. 29th October 1994A 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.
  30. 30th October 1994A 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.
  31. 31st October 1994Explain why potable water is not required to be chemically pure.