Daily Practice · GCSE Science
April 1983 5-a-day
Every sheet in April 1983
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1983State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 2nd April 1983Explain why graphite conducts electricity but diamond does not.
- 3rd April 1983State what is observed when magnesium ribbon is added to copper sulfate solution.
- 4th April 1983State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 5th April 1983Explain why carboxylic acids are described as 'weak acids'.
- 6th April 1983Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 7th April 1983Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 8th April 1983Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 9th April 1983Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 10th April 1983Explain why ultraviolet radiation can be harmful to human skin.
- 11th April 1983State two ways of inducing a potential difference across a conductor using a magnetic field.
- 12th April 1983A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
- 13th April 1983Where is bile made and where is it stored?
- 14th April 1983Why does a vaccinated person not usually become ill when they meet the pathogen?
- 15th April 1983A ruler is released and falls 20 cm before being caught. Using distance = 0.5 x g x time^2 with g = 9.8 m/s^2, calculate the reaction time, to 3 significant figures.
- 16th April 1983Name the equipment used to measure the abundance of a small plant species within a sample area.
- 17th April 1983State the two main steps used to produce potable water from a fresh water source.
- 18th April 1983State the charge on a calcium ion (Group 2).
- 19th April 1983Calculate the concentration in moles per cubic decimetre of a solution containing 0.5 mol in 250 cubic centimetres.
- 20th April 1983State the energy transfer that occurs during an endothermic reaction.
- 21st April 1983Define the term 'hydrocarbon'.
- 22nd April 1983A sample produces only one spot when run in three different solvents. What does this suggest about the sample?
- 23rd April 1983Why should a line of best fit be drawn rather than joining the plotted points?
- 24th April 1983In a parallel circuit, how do the branch currents relate to the total current?
- 25th April 1983State the approximate radius of an atom.
- 26th April 1983A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
- 27th April 1983A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
- 28th April 1983Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
- 29th April 1983Give one adaptation of a root hair cell for absorbing mineral ions.
- 30th April 1983Name the vector that spreads the protist pathogen that causes malaria.