Daily Practice · GCSE Science
December 2007 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 2007, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 2007
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2007Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 2nd December 2007How is the temperature of a gas related to the motion of its molecules?
- 3rd December 2007A 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.
- 4th December 2007An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 5th December 2007A 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.
- 6th December 2007How many pairs of chromosomes are there in a human body cell?
- 7th December 2007Where are most stomata found on a typical leaf, and why?
- 8th December 2007Name four limiting factors of photosynthesis.
- 9th December 2007Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 10th December 2007State what is meant by the term biodiversity.
- 11th December 2007Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
- 12th December 2007Give one use of nanoparticles and one associated risk.
- 13th December 2007Give the ionic equation for neutralisation.
- 14th December 2007State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).
- 15th December 2007Name the two methods used to produce ethanol industrially.
- 16th December 2007Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.
- 17th December 2007State the equation for gravitational potential energy.
- 18th December 2007State the correct SI unit for density.
- 19th December 2007Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
- 20th December 2007State whether sound waves are transverse or longitudinal.
- 21st December 2007State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 22nd December 2007Convert 0.02 mm into micrometres (um).
- 23rd December 2007Explain what happens to an enzyme above its optimum temperature.
- 24th December 2007Name three non-specific defences of the human body.
- 25th December 2007State why a reflex action is described as involuntary.
- 26th December 2007A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.
- 27th December 2007State one benefit of recycling metal rather than extracting new metal from its ore.
- 28th December 2007Name the three types of strong chemical bonding.
- 29th December 2007Convert a concentration of 0.20 moles per cubic decimetre of NaOH into grams per cubic decimetre. (Mr = 40)
- 30th December 2007State the energy transfer that occurs during an exothermic reaction.
- 31st December 2007State what happens to the boiling point of hydrocarbons as their chain length increases.