Daily Practice · GCSE Science
January 1978 5-a-day
Every sheet in January 1978
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 1978State whether breaking a chemical bond requires energy or releases energy.
- 2nd January 1978Define the term 'homologous series'.
- 3rd January 1978State the approximate percentage of nitrogen in today's atmosphere.
- 4th January 1978A spring is compressed. Which energy store increases?
- 5th January 1978Why does the national grid transmit electricity at a very high potential difference?
- 6th January 1978Why is the atomic model a good example of how scientific models change?
- 7th January 1978Write down the equation that links moment, force and distance.
- 8th January 1978A wire of length 0.20 m carries a current of 5.0 A at right angles to a magnetic field of flux density 0.60 T. Calculate the force on the wire.
- 9th January 1978Define the independent variable.
- 10th January 1978Name the organ system responsible for breaking food down into small, soluble molecules.
- 11th January 1978Name the type of pathogen that causes malaria.
- 12th January 1978Explain, in terms of blood vessels, how the skin helps to cool the body when it is too hot.
- 13th January 1978Define speciation.
- 14th January 1978An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 15th January 1978Why are the noble gases unreactive?
- 16th January 1978How many atoms are there in 0.5 mol of helium?
- 17th January 1978Give one everyday example of an endothermic process.
- 18th January 1978State the catalyst commonly used in the Haber process.
- 19th January 1978Describe the test, and the positive result, for ammonium ions.
- 20th January 1978Convert 3.5 kJ into joules.
- 21st January 1978A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 22nd January 1978How is the temperature of a gas related to the motion of its molecules?
- 23rd January 1978Define the term 'vector quantity' and give one example.
- 24th January 1978Name the type of electromagnetic wave used to treat cancer by killing cells in a tumour, and state which part of the atom emits it.
- 25th January 1978State one difference between a moon and an artificial satellite.
- 26th January 1978How many pairs of chromosomes are there in a human body cell?
- 27th January 1978Where are most stomata found on a typical leaf, and why?
- 28th January 1978Name four limiting factors of photosynthesis.
- 29th January 1978Define phenotype.
- 30th January 1978State what is meant by the term biodiversity.
- 31st January 1978Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.