Daily Practice · GCSE Science
December 1954 5-a-day
Every sheet in December 1954
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1954Explain why potassium is more reactive than sodium.
- 2nd December 1954Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 3rd December 1954A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 4th December 1954In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 5th December 1954A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
- 6th December 1954A device transfers 4500 J in 90 s. Calculate its power.
- 7th December 1954A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
- 8th December 1954Why does a bicycle pump get warm when used?
- 9th December 1954A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 10th December 1954A 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).
- 11th December 1954Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
- 12th December 1954What happens to the DNA before mitosis begins?
- 13th December 1954State two conditions that increase the rate of transpiration.
- 14th December 1954A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 15th December 1954Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 16th December 1954Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 17th December 1954State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 18th December 1954Explain why graphite conducts electricity but diamond does not.
- 19th December 1954State what is observed when magnesium ribbon is added to copper sulfate solution.
- 20th December 1954State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 21st December 1954State the functional group found in all alcohols.
- 22nd December 1954Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 23rd December 1954Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 24th December 1954Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 25th December 1954Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 26th December 1954State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 27th December 1954State two factors that increase the size of the potential difference induced in a coil.
- 28th December 1954A 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).
- 29th December 1954Where is bile made and where is it stored?
- 30th December 1954Why does a vaccinated person not usually become ill when they meet the pathogen?
- 31st December 1954Put these into the correct order for a reflex arc: motor neuron, receptor, effector, relay neuron, sensory neuron.