Daily Practice · GCSE Science
August 2002 - GCSE Science 5-a-day
Every GCSE Science sheet published in August 2002, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in August 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2002State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 2nd August 2002Convert 0.02 mm into micrometres (um).
- 3rd August 2002What is an enzyme?
- 4th August 2002Describe phagocytosis.
- 5th August 2002State why a reflex action is described as involuntary.
- 6th August 2002A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.
- 7th August 2002State one benefit of recycling metal rather than extracting new metal from its ore.
- 8th August 2002Name the three types of strong chemical bonding.
- 9th August 2002Give the formula for percentage yield.
- 10th August 2002A student reacts excess zinc powder with 25 cm3 of copper sulfate solution in a polystyrene cup. The starting temperature is 21.0 degrees C and the maximum temperature reached is 58.5 degrees C. Calculate the temperature change.
- 11th August 2002State what happens to the boiling point of hydrocarbons as their chain length increases.
- 12th August 2002State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 13th August 2002Distinguish repeatability from reproducibility.
- 14th August 2002How does the resistance of a thermistor change as it gets hotter?
- 15th August 2002What is an alpha particle made of?
- 16th August 2002A skateboarder of mass 55 kg moving at 4 m/s collides with and grabs onto a stationary shopping trolley of mass 20 kg, and they move off together. Calculate their combined velocity immediately after the collision.
- 17th August 2002Describe the shape of the magnetic field produced around a long straight wire carrying a current.
- 18th August 2002State how the amount of red-shift is related to a galaxy's distance from Earth.
- 19th August 2002Explain why a plant cell placed in pure water does not burst.
- 20th August 2002State one way that pathogens can be spread from person to person.
- 21st August 2002State the word equation for anaerobic respiration in human muscle cells.
- 22nd August 2002State whether cystic fibrosis is caused by a dominant or a recessive allele.
- 23rd August 2002In the rate experiment where a cross disappears, why is the result subjective?
- 24th August 2002An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
- 25th August 2002Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
- 26th August 2002Aqueous copper sulfate solution is electrolysed using inert graphite electrodes. State the products formed at (a) the cathode and (b) the anode, giving a reason for each.
- 27th August 2002In the disappearing cross required practical, state the dependent variable that is measured.
- 28th August 2002A solid gives a lilac flame test. Name the metal ion present.
- 29th August 2002Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
- 30th August 2002Give the equation for efficiency in terms of energy.
- 31st August 2002Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.