Daily Practice · GCSE Science
January 1976 5-a-day
Every sheet in January 1976
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 1976State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 2nd January 1976In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 3rd January 1976Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 4th January 1976Why can HIV not be treated with antibiotics?
- 5th January 1976A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 6th January 1976Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 7th January 1976Write the electronic structure of an atom with 12 electrons.
- 8th January 1976State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 9th January 1976Define the limiting reactant.
- 10th January 1976A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 11th January 1976State what is meant by dynamic equilibrium.
- 12th January 1976Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
- 13th January 1976Why should you write down the equation even if you cannot finish the calculation?
- 14th January 1976State the UK mains supply frequency and typical potential difference.
- 15th January 1976What causes the pressure of a gas on the walls of its container?
- 16th January 1976A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 17th January 1976State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 18th January 1976State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 19th January 1976Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
- 20th January 1976Why are xylem cells strengthened with lignin?
- 21st January 1976Why is glucose converted into starch for storage?
- 22nd January 1976Define the term allele.
- 23rd January 1976State one way in which high biodiversity benefits an ecosystem.
- 24th January 1976Explain how painting an iron gate helps prevent it from rusting.
- 25th January 1976Why can an ionic solid not conduct electricity?
- 26th January 1976Name the salt made from zinc oxide and nitric acid.
- 27th January 1976State what is meant by a catalyst.
- 28th January 1976Explain why carboxylic acids are described as 'weak acids'.
- 29th January 1976Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 30th January 1976Define specific heat capacity.
- 31st January 1976A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.