Daily Practice · GCSE Science
January 1963 5-a-day
Every sheet in January 1963
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 1963Why is the amount of product directly proportional to the amount of limiting reactant?
- 2nd January 1963A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 3rd January 1963State the two named reactants used in the Haber process.
- 4th January 1963A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 5th January 1963Give the equation for wave speed and its units.
- 6th January 1963A 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.
- 7th January 1963Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 8th January 1963A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.
- 9th January 1963An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 10th January 1963A satellite in a stable, small-radius, close orbit around the Earth is compared with a satellite in a stable, large-radius, distant orbit. State which of the two satellites has the greater orbital speed.
- 11th January 1963Give one risk of stem cell treatment.
- 12th January 1963Why does a potometer measure water uptake rather than transpiration directly?
- 13th January 1963Why does the rate of photosynthesis fall at very high temperatures?
- 14th January 1963Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 15th January 1963Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 16th January 1963State the four stages considered in a life cycle assessment.
- 17th January 1963Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 18th January 1963Define oxidation in terms of electrons.
- 19th January 1963State two units that the rate of a reaction can be measured in.
- 20th January 1963Name the two methods used to produce ethanol industrially.
- 21st January 1963Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 22nd January 1963A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 23rd January 1963Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 24th January 1963A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 25th January 1963State whether sound waves are transverse or longitudinal.
- 26th January 1963State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 27th January 1963A 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).
- 28th January 1963State two functions of bile.
- 29th January 1963What is an antigen?
- 30th January 1963State why a reflex action is described as involuntary.
- 31st January 1963A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.