Daily Practice · GCSE Science
December 1984 5-a-day
Every sheet in December 1984
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1984State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 2nd December 1984Name the gas that relights a glowing splint.
- 3rd December 1984Name two gases that dissolve in atmospheric water droplets to cause acid rain.
- 4th December 1984Define power and give its unit.
- 5th December 1984Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 6th December 1984A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
- 7th December 1984A wave has a period of 0.005 s. Calculate its frequency.
- 8th December 1984State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 9th December 1984Give one advantage of a light microscope over an electron microscope.
- 10th December 1984Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 11th December 1984Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
- 12th December 1984Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 13th December 1984Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
- 14th December 1984State what is meant by sustainable development.
- 15th December 1984Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 16th December 1984State the pH value of a neutral solution.
- 17th December 1984State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 18th December 1984State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 19th December 1984Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
- 20th December 1984A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
- 21st December 1984Give the colour and function of the earth wire.
- 22nd December 1984What observation showed the nucleus is positively charged and very small?
- 23rd December 1984Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 24th December 1984State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 25th December 1984A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.
- 26th December 1984An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 27th December 1984Give one way of reducing the spread of malaria.
- 28th December 1984A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 29th December 1984Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 30th December 1984An atom has atomic number 11 and mass number 23. State the number of protons.
- 31st December 1984Why do elements in the same group have similar chemical properties?