Daily Practice · GCSE Science
November 1990 5-a-day
Every sheet in November 1990
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1990Write the electronic structure of an atom with 12 electrons.
- 2nd November 1990On what property are elements ordered in the modern periodic table?
- 3rd November 1990In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
- 4th November 1990A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 5th November 1990In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 6th November 1990Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
- 7th November 1990State the equation for work done.
- 8th November 1990State the UK mains supply frequency and typical potential difference.
- 9th November 1990State the relationship between pressure and volume for a fixed mass of gas at constant temperature.
- 10th November 1990A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 11th November 1990A 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).
- 12th November 1990Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
- 13th November 1990Where in a plant are stem cells found?
- 14th November 1990Name the process by which dissolved sugars are transported in the phloem.
- 15th November 1990Why is photosynthesis described as endothermic?
- 16th November 1990Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 17th November 1990State one human activity that reduces the amount of land available for other organisms.
- 18th November 1990State the two substances that must both be present for iron to rust.
- 19th November 1990State the size range of a nanoparticle.
- 20th November 1990Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 21st November 1990Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 22nd November 1990State the functional group found in all alcohols.
- 23rd November 1990Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 24th November 1990What happens to the energy described as 'wasted' in a transfer?
- 25th November 1990A 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.
- 26th November 1990Explain the difference between irradiation and contamination.
- 27th November 1990State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 28th November 1990State two factors that increase the size of the potential difference induced in a coil.
- 29th November 1990State one structure found in a bacterial cell but not in an animal cell.
- 30th November 1990Name the products of protein digestion.