Daily Practice · GCSE Science
October 2002 - GCSE Science 5-a-day
Every GCSE Science sheet published in October 2002, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in October 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 2002Why should you write down the equation even if you cannot finish the calculation?
- 2nd October 2002A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
- 3rd October 2002What causes the pressure of a gas on the walls of its container?
- 4th October 2002On a velocity-time graph, what does the area between the line and the time axis represent?
- 5th October 2002State the speed of all electromagnetic waves travelling through a vacuum.
- 6th October 2002State the name of the force that keeps a satellite in orbit around the Earth.
- 7th October 2002Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
- 8th October 2002Why are xylem cells strengthened with lignin?
- 9th October 2002Why is glucose converted into starch for storage?
- 10th October 2002A plant grown in the shade is shorter than a genetically identical plant of the same species grown in full sunlight. State whether this difference is genetic variation, environmental variation, or both.
- 11th October 2002State one way in which high biodiversity benefits an ecosystem.
- 12th October 2002Explain how painting an iron gate helps prevent it from rusting.
- 13th October 2002Why can an ionic solid not conduct electricity?
- 14th October 2002Name the salt made from zinc oxide and nitric acid.
- 15th October 2002State what is meant by a catalyst.
- 16th October 2002Name the small molecule typically released as a by-product during condensation polymerisation.
- 17th October 2002State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 18th October 2002Define specific heat capacity.
- 19th October 2002Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 20th October 2002State the number of protons and the number of neutrons in an alpha particle.
- 21st October 2002A water wave has a frequency of 4 Hz and a wavelength of 0.5 m. Calculate its speed.
- 22nd October 2002A transformer's primary coil is connected to a 12 V supply and has 60 turns. Calculate the number of turns needed on the secondary coil to produce an output of 3.0 V.
- 23rd October 2002Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 24th October 2002Why does a food test for sugars need a water bath?
- 25th October 2002Explain what is meant by a double blind trial.
- 26th October 2002Define a synapse.
- 27th October 2002Give one example of an abiotic factor that could affect where a plant species grows.
- 28th October 2002Name two methods of desalinating seawater.
- 29th October 2002Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 30th October 2002Give the formula for atom economy.
- 31st October 2002Explain, in terms of the reaction pathway, why adding a catalyst increases the rate of a reaction without changing the overall energy change of the reaction.