Daily Practice · GCSE Science
February 2004 - GCSE Science 5-a-day
Every GCSE Science sheet published in February 2004, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in February 2004
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2004Calculate the mass of 0.25 mol of sodium hydroxide, NaOH. (Na = 23, O = 16, H = 1)
- 2nd February 2004Using the values in the previous question, calculate the overall energy change for the reaction.
- 3rd February 2004In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 4th February 2004State the flame test colour for sodium ions.
- 5th February 2004Calculate the gravitational potential energy gained by a 60 kg person climbing 5 m. (g = 9.8 N/kg)
- 6th February 2004A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
- 7th February 2004A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
- 8th February 2004A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 9th February 2004Name the type of electromagnetic wave used by a television remote control.
- 10th February 2004Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 11th February 2004State three functions of mitosis.
- 12th February 2004What happens to guard cells when a plant is short of water?
- 13th February 2004Write the word equation for photosynthesis.
- 14th February 2004Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.
- 15th February 2004State one method used to try to maintain biodiversity.
- 16th February 2004Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
- 17th February 2004Why is graphite soft and slippery?
- 18th February 2004Explain the difference between a strong acid and a concentrated acid.
- 19th February 2004A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
- 20th February 2004Name the carboxylic acid produced when ethanol is oxidised.
- 21st February 2004State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 22nd February 2004Name four energy stores.
- 23rd February 2004Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 24th February 2004State one source of natural background radiation and one source of artificial (man-made) background radiation.
- 25th February 2004Define the term 'wavelength' of a wave.
- 26th February 2004State the difference between an alternator and a dynamo.
- 27th February 2004Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 28th February 2004What is an enzyme?
- 29th February 2004Describe phagocytosis.