Daily Practice · GCSE Science
February 1994 - GCSE Science 5-a-day
Every sheet in February 1994
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1994What happens to the total resistance when a second resistor is added in parallel, and why?
- 2nd February 1994What happens inside the nucleus when a beta particle is emitted?
- 3rd February 1994A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
- 4th February 1994A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
- 5th February 1994Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
- 6th February 1994State three factors that increase the rate of diffusion.
- 7th February 1994Name the vector that spreads the protist pathogen that causes malaria.
- 8th February 1994Explain, in terms of respiration, why a build-up of lactic acid causes muscle fatigue during vigorous exercise.
- 9th February 1994A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
- 10th February 1994What does 'concordant' mean when applied to titres?
- 11th February 1994What did the alpha scattering experiment show that the plum pudding model could not explain?
- 12th February 1994Magnesium is burned in an open crucible and the mass increases. Explain why.
- 13th February 1994In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
- 14th February 1994Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
- 15th February 1994Describe the result of the test for carbon dioxide.
- 16th February 1994Give one piece of evidence used to link human activity to recent climate change.
- 17th February 1994Give one advantage and one disadvantage of wind power.
- 18th February 1994Why does the temperature stay constant while a substance boils?
- 19th February 1994A gardener pushes a mower with a force of 60 N through a distance of 8.0 m. Calculate the work done. Use W = F x s.
- 20th February 1994A wave has a frequency of 50 Hz. Calculate its period.
- 21st February 1994Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
- 22nd February 1994Where is the DNA found in a bacterial cell?
- 23rd February 1994Name the substance in red blood cells that binds oxygen.
- 24th February 1994Name the organelle in a plant cell where photosynthesis takes place.
- 25th February 1994State one risk factor linked to type 2 diabetes.
- 26th February 1994In a grassland food chain, the biomass of grass available is 8400 kg and the biomass transferred to the rabbits that eat it is 940 kg. Calculate the percentage efficiency of biomass transfer from grass to rabbits, to 3 significant figures.
- 27th February 1994Name one method used to sterilise fresh water during the production of potable water.
- 28th February 1994Give the charge on an ion formed by a group 2 element.