Daily Practice · GCSE Science
October 2001 - GCSE Science 5-a-day
Every GCSE Science sheet published in October 2001, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in October 2001
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 2001A sealed flask containing 12.0 g of reactants is shaken and a reaction occurs. What is the total mass afterwards?
- 2nd October 2001State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
- 3rd October 2001Explain how a catalyst increases the rate of a reaction without being used up.
- 4th October 2001State the difference between a pure substance and a formulation.
- 5th October 2001Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.
- 6th October 2001Name three renewable energy resources.
- 7th October 2001State the equation for density.
- 8th October 2001A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 9th October 2001Give one everyday example of a transverse wave and one everyday example of a longitudinal wave.
- 10th October 2001State what happens to the orbital speed needed for a stable orbit as the orbital radius increases.
- 11th October 2001Why is a stain such as iodine used when preparing a slide?
- 12th October 2001Give two adaptations of a red blood cell.
- 13th October 2001State three factors that can limit the rate of photosynthesis.
- 14th October 2001Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 15th October 2001Explain why a pyramid of biomass is never wider at the top than at the bottom.
- 16th October 2001Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 17th October 2001Define a covalent bond.
- 18th October 2001Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 19th October 2001State the difference between a rechargeable cell and a non-rechargeable cell.
- 20th October 2001Name the alkene with the molecular formula C4H8.
- 21st October 2001Name three greenhouse gases.
- 22nd October 2001A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 23rd October 2001Calculate the current drawn by a 1150 W kettle on a 230 V supply.
- 24th October 2001State the approximate radius of a nucleus compared with the radius of an atom.
- 25th October 2001A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 26th October 2001State two ways of increasing the force produced by a motor effect setup, for a wire of fixed length at a fixed angle to the field.
- 27th October 2001State the difference between resolution and accuracy.
- 28th October 2001Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 29th October 2001How do bacteria make a person feel ill?
- 30th October 2001Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 31st October 2001Define mutation.