Daily Practice · GCSE Science
July 2012 - GCSE Science 5-a-day
Every GCSE Science sheet published in July 2012, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in July 2012
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 2012State the difference between irradiation and contamination.
- 2nd July 2012State Newton's First Law of Motion.
- 3rd July 2012Two bar magnets are placed with their north poles facing each other. State what happens to the magnets.
- 4th July 2012State what is meant by red-shift.
- 5th July 2012Name the process that moves substances against a concentration gradient.
- 6th July 2012A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
- 7th July 2012Explain why breathing rate and breathing depth both increase during exercise.
- 8th July 2012In pea plants, purple flower colour (allele H) is dominant over white flower colour (allele h). State the phenotype of a plant with genotype Hh.
- 9th July 2012Why is the burette rinsed with the solution it is going to contain rather than with water?
- 10th July 2012State the relative mass and relative charge of a neutron.
- 11th July 2012Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
- 12th July 2012State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
- 13th July 2012Explain how a catalyst increases the rate of a reaction without being used up.
- 14th July 2012Which reagent is added, and in what colour change, to test for chlorine gas?
- 15th July 2012Explain how solid carbon particulates released by combustion can cause global dimming.
- 16th July 2012A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
- 17th July 2012Define specific latent heat of fusion.
- 18th July 2012A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 19th July 2012Give one everyday example of a transverse wave and one everyday example of a longitudinal wave.
- 20th July 2012State what happens to the orbital speed needed for a stable orbit as the orbital radius increases.
- 21st July 2012Give the equation linking magnification, image size and real size.
- 22nd July 2012Give one advantage and one disadvantage of a stent.
- 23rd July 2012State three factors that can limit the rate of photosynthesis.
- 24th July 2012Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 25th July 2012State what is meant by the term ecosystem.
- 26th July 2012Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 27th July 2012Describe metallic bonding.
- 28th July 2012Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 29th July 2012State whether breaking a chemical bond requires energy or releases energy.
- 30th July 2012Name the alkene with the molecular formula C4H8.
- 31st July 2012Name three greenhouse gases.