Daily Practice · GCSE Science
January 1983 5-a-day
Every sheet in January 1983
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 1983On a velocity-time graph, what does the area between the line and the time axis represent?
- 2nd January 1983State the speed of all electromagnetic waves travelling through a vacuum.
- 3rd January 1983State the name of the force that keeps a satellite in orbit around the Earth.
- 4th January 1983Where in a plant are stem cells found?
- 5th January 1983Name the process by which dissolved sugars are transported in the phloem.
- 6th January 1983Why is photosynthesis described as endothermic?
- 7th January 1983A plant grown in the shade is shorter than a genetically identical plant of the same species grown in full sunlight. State whether this difference is genetic variation, environmental variation, or both.
- 8th January 1983State one human activity that reduces the amount of land available for other organisms.
- 9th January 1983State the two substances that must both be present for iron to rust.
- 10th January 1983State the size range of a nanoparticle.
- 11th January 1983Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 12th January 1983Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 13th January 1983Name the small molecule typically released as a by-product during condensation polymerisation.
- 14th January 1983Describe, in terms of wavelength, the difference between the radiation the Earth receives from the Sun and the radiation it re-emits from its surface.
- 15th January 1983What happens to the energy described as 'wasted' in a transfer?
- 16th January 1983State what happens to the internal energy of a substance as it is heated, in terms of the kinetic and potential energy of its particles.
- 17th January 1983Explain the difference between irradiation and contamination.
- 18th January 1983A water wave has a frequency of 4 Hz and a wavelength of 0.5 m. Calculate its speed.
- 19th January 1983A transformer's primary coil is connected to a 12 V supply and has 60 turns. Calculate the number of turns needed on the secondary coil to produce an output of 3.0 V.
- 20th January 1983A microscope has a x10 eyepiece lens and a x20 objective lens. Calculate the total magnification.
- 21st January 1983Name the products of protein digestion.
- 22nd January 1983State the difference between an antibiotic and a painkiller.
- 23rd January 1983Define a synapse.
- 24th January 1983Give one example of an abiotic factor that could affect where a plant species grows.
- 25th January 1983Explain why potable water is not the same as pure water.
- 26th January 1983Explain why sodium chloride conducts electricity when molten but not when solid.
- 27th January 1983Convert 250 cubic centimetres into cubic decimetres.
- 28th January 1983A student heats solid copper carbonate strongly in a test tube, and it breaks down into copper oxide and carbon dioxide. Heating must be continued throughout the reaction for it to keep going. State whether this thermal decomposition reaction is exothermic or endothermic, and explain your reasoning.
- 29th January 1983State the general formula of the alkanes.
- 30th January 1983Write the formula for calculating an Rf value.
- 31st January 1983Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.