Daily Practice · GCSE Science
February 1980 5-a-day
Every sheet in February 1980
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1980A microwave oven uses electromagnetic waves with a wavelength of 0.12 m. Calculate the frequency of these waves (speed of light = 3 x 10^8 m/s).
- 2nd February 1980Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
- 3rd February 1980What happens to the DNA before mitosis begins?
- 4th February 1980State two conditions that increase the rate of transpiration.
- 5th February 1980A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 6th February 1980Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 7th February 1980Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 8th February 1980State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 9th February 1980Explain why graphite conducts electricity but diamond does not.
- 10th February 1980State what is observed when magnesium ribbon is added to copper sulfate solution.
- 11th February 1980State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 12th February 1980State the functional group found in all alcohols.
- 13th February 1980Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 14th February 1980Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 15th February 1980A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 16th February 1980Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 17th February 1980State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 18th February 1980State two factors that increase the size of the potential difference induced in a coil.
- 19th February 1980State one structure found in a bacterial cell but not in an animal cell.
- 20th February 1980Where is bile made and where is it stored?
- 21st February 1980Why does a vaccinated person not usually become ill when they meet the pathogen?
- 22nd February 1980Put these into the correct order for a reflex arc: motor neuron, receptor, effector, relay neuron, sensory neuron.
- 23rd February 1980State one structural adaptation of a polar bear that helps it survive in a cold environment.
- 24th February 1980Define a finite resource, giving one example.
- 25th February 1980State one reason why simple covalent substances such as chlorine have low melting points.
- 26th February 1980Calculate the concentration in moles per cubic decimetre of a solution containing 0.5 mol in 250 cubic centimetres.
- 27th February 1980State the energy transfer that occurs during an endothermic reaction.
- 28th February 1980Name the process used to separate crude oil into fractions.
- 29th February 1980A sample produces only one spot when run in three different solvents. What does this suggest about the sample?