Daily Practice · GCSE Science
September 1974 5-a-day
Every sheet in September 1974
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 1974State one advantage and one disadvantage of selective breeding in farm animals.
- 2nd September 1974Write the electronic structure of an atom with 12 electrons.
- 3rd September 1974Give two observations when lithium is added to water.
- 4th September 1974State the value of the Avogadro constant and what it counts.
- 5th September 1974A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 6th September 1974In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 7th September 1974Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 8th September 1974Write the equation linking power, energy and time, and rearrange it for time.
- 9th September 1974State the UK mains supply frequency and typical potential difference.
- 10th September 1974A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 11th September 1974A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 12th September 1974A 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).
- 13th September 1974Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
- 14th September 1974Define an undifferentiated cell.
- 15th September 1974Which tissue transports water and mineral ions from the roots?
- 16th September 1974Give three uses of the glucose produced in photosynthesis.
- 17th September 1974Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 18th September 1974A peat bog covered an area of 850 hectares in 2015. By 2025, drainage for farmland had reduced the peat bog to 680 hectares. Calculate the percentage decrease in the area of the peat bog.
- 19th September 1974Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
- 20th September 1974Why do polymers have higher melting points than small molecules such as methane?
- 21st September 1974Complete: acid + metal carbonate gives ...
- 22nd September 1974State the four factors that can increase the rate of a chemical reaction.
- 23rd September 1974State the functional group found in all alcohols.
- 24th September 1974Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 25th September 1974By what factor does kinetic energy increase if speed is doubled?
- 26th September 1974A 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.
- 27th September 1974Define the term 'half-life' of a radioactive isotope.
- 28th September 1974State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 29th September 1974State two factors that increase the size of the potential difference induced in a coil.
- 30th September 1974State one structure found in a bacterial cell but not in an animal cell.