Daily Practice · GCSE Science
January 2011 - GCSE Science 5-a-day
Every GCSE Science sheet published in January 2011, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in January 2011
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2011State the name given to a reaction in which a substance loses electrons.
- 2nd January 2011State whether breaking a chemical bond requires energy or releases energy.
- 3rd January 2011Propene (C3H6) reacts with steam in the presence of a catalyst. Name the catalyst, and name the type of compound formed.
- 4th January 2011Give two processes that removed carbon dioxide from the early atmosphere.
- 5th January 2011Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 6th January 2011Why does the national grid transmit electricity at a very high potential difference?
- 7th January 2011Why is the atomic model a good example of how scientific models change?
- 8th January 2011State two factors, other than depth, that affect the pressure at a given point in a liquid.
- 9th January 2011State the name of the rule used to find the direction of the force on a current-carrying wire in a magnetic field, and name the three quantities it relates.
- 10th January 2011Define the independent variable.
- 11th January 2011Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 12th January 2011Name the type of pathogen that causes malaria.
- 13th January 2011State what is meant by negative feedback.
- 14th January 2011Name the scientist who proposed the three-domain system of classification, and name the three domains.
- 15th January 2011Write the electronic structure of an atom with 12 electrons.
- 16th January 2011Why are the noble gases unreactive?
- 17th January 2011How many atoms are there in 0.5 mol of helium?
- 18th January 2011A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 19th January 2011State the effect of increasing the temperature on the position of equilibrium of a reaction whose forward reaction is exothermic.
- 20th January 2011Describe the test, and the positive result, for ammonium ions.
- 21st January 2011Convert 3.5 kJ into joules.
- 22nd January 2011State the UK mains supply frequency and typical potential difference.
- 23rd January 2011How is the temperature of a gas related to the motion of its molecules?
- 24th January 2011A car's velocity increases from 8 m/s to 20 m/s over 4 seconds. Calculate its acceleration.
- 25th January 2011State one medical use of X-rays and one safety precaution taken when X-rays are used in a hospital.
- 26th January 2011State two uses of artificial satellites.
- 27th January 2011How many pairs of chromosomes are there in a human body cell?
- 28th January 2011Where are most stomata found on a typical leaf, and why?
- 29th January 2011Name four limiting factors of photosynthesis.
- 30th January 2011State one difference between selective breeding and genetic engineering.
- 31st January 2011State what is meant by the term biodiversity.