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Daily Practice · GCSE Science

July 1955 5-a-day

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July 1955

31 sheets · 155 questions · GCSE

July 1955 compilationAll answers

Every sheet in July 1955

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 1955In the rate experiment where a cross disappears, why is the result subjective?
  2. 2nd July 1955An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
  3. 3rd July 1955Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
  4. 4th July 1955Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
  5. 5th July 1955A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
  6. 6th July 1955A solid gives a lilac flame test. Name the metal ion present.
  7. 7th July 1955Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
  8. 8th July 1955Give the equation for efficiency in terms of energy.
  9. 9th July 1955Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
  10. 10th July 1955State whether friction is a contact force or a non-contact force.
  11. 11th July 1955State the difference between a transverse wave and a longitudinal wave.
  12. 12th July 1955Name the force that keeps the planets in orbit around the Sun.
  13. 13th July 1955State the function of the mitochondria.
  14. 14th July 1955Which component of blood transports carbon dioxide, urea and hormones?
  15. 15th July 1955Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
  16. 16th July 1955Explain why sweating cools the body down.
  17. 17th July 1955A 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 1955Give one reason distillation of seawater requires a large energy input.
  19. 19th July 1955Why can metals conduct electricity when solid?
  20. 20th July 1955A student reacts 2.4 g of magnesium with excess dilute hydrochloric acid: Mg + 2HCl -> MgCl2 + H2. Relative atomic mass of Mg = 24. Calculate the number of moles of hydrogen gas produced.
  21. 21st July 1955State whether forming a new chemical bond requires energy or releases energy.
  22. 22nd July 1955Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
  23. 23rd July 1955Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
  24. 24th July 1955Name the energy store associated with a moving car.
  25. 25th July 1955What is the difference between alternating and direct current?
  26. 26th July 1955What observation showed that the atom is mostly empty space?
  27. 27th July 1955A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
  28. 28th July 1955A rectangular coil carrying a current is placed in a magnetic field, with its two long sides parallel to each other. Explain why the coil rotates rather than moving in a straight line.
  29. 29th July 1955In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
  30. 30th July 1955State the type of large biological molecule that all enzymes are made from.
  31. 31st July 1955Why can HIV not be treated with antibiotics?