Daily Practice · GCSE Science
June 1973 5-a-day
Every sheet in June 1973
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 1973State one reason why simple covalent substances such as chlorine have low melting points.
- 2nd June 1973Convert a concentration of 0.20 moles per cubic decimetre of NaOH into grams per cubic decimetre. (Mr = 40)
- 3rd June 1973State the energy transfer that occurs during an exothermic reaction.
- 4th June 1973Hexadecane (C16H34) is cracked to produce dodecane (C12H26) and one other product. Calculate the molecular formula of the other product.
- 5th June 1973In a chromatography experiment, a dye spot travels 4.5 cm and the solvent front travels 6.0 cm. Calculate its Rf value.
- 6th June 1973Define the resolution of a measuring instrument.
- 7th June 1973Two 4 ohm resistors are connected in series. Calculate the total resistance.
- 8th June 1973Which type of radiation is stopped by a sheet of paper?
- 9th June 1973A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
- 10th June 1973State the difference between a permanent magnet and an induced magnet.
- 11th June 1973State whether a galaxy moving towards Earth would show a red-shift or a blue-shift in its light.
- 12th June 1973Why does active transport require energy?
- 13th June 1973A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
- 14th June 1973State two things excess glucose can be converted into for storage in the human body.
- 15th June 1973Define homozygous.
- 16th June 1973Name one way to make a rate of reaction experiment more valid rather than simply more precise.
- 17th June 1973Define an isotope.
- 18th June 1973A sealed flask containing 12.0 g of reactants is shaken and a reaction occurs. What is the total mass afterwards?
- 19th June 1973Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
- 20th June 1973A 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.
- 21st June 1973State the difference between a pure substance and a formulation.
- 22nd June 1973Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.
- 23rd June 1973Name three renewable energy resources.
- 24th June 1973State the equation for density.
- 25th June 1973A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 26th June 1973State the difference between a transverse wave and a longitudinal wave.
- 27th June 1973Name the force that keeps the planets in orbit around the Sun.
- 28th June 1973Why is a stain such as iodine used when preparing a slide?
- 29th June 1973Give two adaptations of a red blood cell.
- 30th June 1973State three factors that can limit the rate of photosynthesis.