Daily Practice · GCSE Science
March 2010 - GCSE Science 5-a-day
Every GCSE Science sheet published in March 2010, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in March 2010
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2010Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 2nd March 2010A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 3rd March 2010State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 4th March 2010State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 5th March 2010Give one risk of stem cell treatment.
- 6th March 2010Why does a potometer measure water uptake rather than transpiration directly?
- 7th March 2010Why does the rate of photosynthesis fall at very high temperatures?
- 8th March 2010Define the term allele.
- 9th March 2010Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 10th March 2010State the four stages considered in a life cycle assessment.
- 11th March 2010Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 12th March 2010Define oxidation in terms of electrons.
- 13th March 2010State two units that the rate of a reaction can be measured in.
- 14th March 2010Explain why carboxylic acids are described as 'weak acids'.
- 15th March 2010Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 16th March 2010A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 17th March 2010Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 18th March 2010A 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.
- 19th March 2010Explain why ultraviolet radiation can be harmful to human skin.
- 20th March 2010State two ways of inducing a potential difference across a conductor using a magnetic field.
- 21st March 2010A 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).
- 22nd March 2010State two functions of bile.
- 23rd March 2010What is an antigen?
- 24th March 2010A ruler is released and falls 20 cm before being caught. Using distance = 0.5 x g x time^2 with g = 9.8 m/s^2, calculate the reaction time, to 3 significant figures.
- 25th March 2010Name the equipment used to measure the abundance of a small plant species within a sample area.
- 26th March 2010State the two main steps used to produce potable water from a fresh water source.
- 27th March 2010State the charge on a calcium ion (Group 2).
- 28th March 2010State two reasons why a percentage yield is less than 100 percent.
- 29th March 2010State what is meant by the activation energy of a reaction.
- 30th March 2010Define the term 'hydrocarbon'.
- 31st March 2010Explain why the baseline is drawn in pencil rather than ink.