Daily Practice · GCSE Science
May 2000 - GCSE Science 5-a-day
Every GCSE Science sheet published in May 2000, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in May 2000
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2000Explain the difference between irradiation and contamination.
- 2nd May 2000State the speed at which all electromagnetic waves travel through a vacuum.
- 3rd May 2000A transformer has 500 turns on its primary coil and 2500 turns on its secondary coil. State, with a reason, whether this is a step-up or a step-down transformer.
- 4th May 2000State one structure found in a bacterial cell but not in an animal cell.
- 5th May 2000Name the products of protein digestion.
- 6th May 2000State the difference between an antibiotic and a painkiller.
- 7th May 2000Name the two parts of the central nervous system (CNS).
- 8th May 2000Name the group of organisms that break down dead plant and animal matter, returning mineral ions to the soil.
- 9th May 2000Define a finite resource, giving one example.
- 10th May 2000State one reason why simple covalent substances such as chlorine have low melting points.
- 11th May 2000Convert 250 cubic centimetres into cubic decimetres.
- 12th May 2000A student heats solid copper carbonate strongly in a test tube, and it breaks down into copper oxide and carbon dioxide. Heating must be continued throughout the reaction for it to keep going. State whether this thermal decomposition reaction is exothermic or endothermic, and explain your reasoning.
- 13th May 2000Hexadecane (C16H34) is cracked to produce dodecane (C12H26) and one other product. Calculate the molecular formula of the other product.
- 14th May 2000Write the formula for calculating an Rf value.
- 15th May 2000Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
- 16th May 2000What happens to the total resistance when a second resistor is added in parallel, and why?
- 17th May 2000What happens inside the nucleus when a beta particle is emitted?
- 18th May 2000A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
- 19th May 2000State the difference between a permanent magnet and an induced magnet.
- 20th May 2000State whether a galaxy moving towards Earth would show a red-shift or a blue-shift in its light.
- 21st May 2000State three factors that increase the rate of diffusion.
- 22nd May 2000A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
- 23rd May 2000State two things excess glucose can be converted into for storage in the human body.
- 24th May 2000Define homozygous.
- 25th May 2000What does 'concordant' mean when applied to titres?
- 26th May 2000What did the alpha scattering experiment show that the plum pudding model could not explain?
- 27th May 2000Magnesium is burned in an open crucible and the mass increases. Explain why.
- 28th May 2000Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
- 29th May 2000A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
- 30th May 2000Describe the result of the test for carbon dioxide.
- 31st May 2000Give one piece of evidence used to link human activity to recent climate change.