Daily Practice · GCSE Science
May 1995 - GCSE Science 5-a-day
Every sheet in May 1995
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1995How many atoms are there in 0.5 mol of helium?
- 2nd May 1995A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 3rd May 1995State the two named reactants used in the Haber process.
- 4th May 1995Describe the test, and the positive result, for ammonium ions.
- 5th May 1995Convert 3.5 kJ into joules.
- 6th May 1995A 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 May 1995How is the temperature of a gas related to the motion of its molecules?
- 8th May 1995A 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 May 1995An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 10th May 1995A 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 May 1995How many pairs of chromosomes are there in a human body cell?
- 12th May 1995Where are most stomata found on a typical leaf, and why?
- 13th May 1995Name four limiting factors of photosynthesis.
- 14th May 1995Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 15th May 1995State what is meant by the term biodiversity.
- 16th May 1995Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
- 17th May 1995Give one use of nanoparticles and one associated risk.
- 18th May 1995Give the ionic equation for neutralisation.
- 19th May 1995State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).
- 20th May 1995Name the two methods used to produce ethanol industrially.
- 21st May 1995Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 22nd May 1995State the equation for gravitational potential energy.
- 23rd May 1995Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 24th May 1995Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
- 25th May 1995State whether sound waves are transverse or longitudinal.
- 26th May 1995State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 27th May 1995A 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 May 1995Explain what happens to an enzyme above its optimum temperature.
- 29th May 1995Name three non-specific defences of the human body.
- 30th May 1995State why a reflex action is described as involuntary.
- 31st May 1995A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.