Daily Practice · GCSE Science
September 2009 - GCSE Science 5-a-day
Every GCSE Science sheet published in September 2009, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in September 2009
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 2009Calculate the current drawn by a 1150 W kettle on a 230 V supply.
- 2nd September 2009State the approximate radius of a nucleus compared with the radius of an atom.
- 3rd September 2009State the equation that links pressure, force and area.
- 4th September 2009In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 5th September 2009State the difference between resolution and accuracy.
- 6th September 2009Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 7th September 2009How do bacteria make a person feel ill?
- 8th September 2009Name the gland that monitors and controls blood glucose concentration.
- 9th September 2009Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
- 10th September 2009Write the electronic structure of an atom with 12 electrons.
- 11th September 2009On what property are elements ordered in the modern periodic table?
- 12th September 2009In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
- 13th September 2009A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 14th September 2009State the two named reactants used in the Haber process.
- 15th September 2009Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
- 16th September 2009State the equation for work done.
- 17th September 2009State the UK mains supply frequency and typical potential difference.
- 18th September 2009State the relationship between pressure and volume for a fixed mass of gas at constant temperature.
- 19th September 2009A 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.
- 20th September 2009An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 21st September 2009A 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.
- 22nd September 2009Where in a plant are stem cells found?
- 23rd September 2009Name the process by which dissolved sugars are transported in the phloem.
- 24th September 2009Why is photosynthesis described as endothermic?
- 25th September 2009Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 26th September 2009State one human activity that reduces the amount of land available for other organisms.
- 27th September 2009State the two substances that must both be present for iron to rust.
- 28th September 2009State the size range of a nanoparticle.
- 29th September 2009Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 30th September 2009Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.