Daily Practice · GCSE Science
February 2000 - GCSE Science 5-a-day
Every GCSE Science sheet published in February 2000, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in February 2000
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2000Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
- 2nd February 2000Give one use of nanoparticles and one associated risk.
- 3rd February 2000Give the ionic equation for neutralisation.
- 4th February 2000State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).
- 5th February 2000State what happens to the carbon-to-carbon double bond of an alkene monomer during addition polymerisation.
- 6th February 2000State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 7th February 2000State the equation for gravitational potential energy.
- 8th February 2000Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 9th February 2000Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
- 10th February 2000Name the type of electromagnetic wave used to sterilise medical equipment.
- 11th February 2000A transformer has a primary current of 2.0 A and a primary voltage of 230 V. The secondary voltage is 460 V. Assuming the transformer is 100 percent efficient, calculate the secondary current.
- 12th February 2000Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 13th February 2000Explain what happens to an enzyme above its optimum temperature.
- 14th February 2000Name three non-specific defences of the human body.
- 15th February 2000Explain why reflex responses are faster than voluntary responses.
- 16th February 2000Define community, in ecological terms.
- 17th February 2000Name two methods of desalinating seawater.
- 18th February 2000Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 19th February 2000Convert a concentration of 0.20 moles per cubic decimetre of NaOH into grams per cubic decimetre. (Mr = 40)
- 20th February 2000State the energy transfer that occurs during an exothermic reaction.
- 21st February 2000Name the two industrial methods of cracking.
- 22nd February 2000In a chromatography experiment, a dye spot travels 4.5 cm and the solvent front travels 6.0 cm. Calculate its Rf value.
- 23rd February 2000Define the resolution of a measuring instrument.
- 24th February 2000Two 4 ohm resistors are connected in series. Calculate the total resistance.
- 25th February 2000Which type of radiation is stopped by a sheet of paper?
- 26th February 2000Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
- 27th February 2000State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
- 28th February 2000State what red-shift shows about the motion of most distant galaxies.
- 29th February 2000Why does active transport require energy?