Daily Practice · GCSE Science
August 1955 5-a-day
Every sheet in August 1955
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 1955Define homeostasis.
- 2nd August 1955Give one example of variation that is caused purely by the environment rather than by genes.
- 3rd August 1955A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
- 4th August 1955State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 5th August 1955Define the limiting reactant.
- 6th August 1955Using the values in the previous question, calculate the overall energy change for the reaction.
- 7th August 1955In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 8th August 1955Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
- 9th August 1955Why should you write down the equation even if you cannot finish the calculation?
- 10th August 1955A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
- 11th August 1955What causes the pressure of a gas on the walls of its container?
- 12th August 1955A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 13th August 1955Name the type of electromagnetic wave used by a television remote control.
- 14th August 1955Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 15th August 1955Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
- 16th August 1955Why are xylem cells strengthened with lignin?
- 17th August 1955Why is glucose converted into starch for storage?
- 18th August 1955Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.
- 19th August 1955State one way in which high biodiversity benefits an ecosystem.
- 20th August 1955Explain how painting an iron gate helps prevent it from rusting.
- 21st August 1955Why can an ionic solid not conduct electricity?
- 22nd August 1955Name the salt made from zinc oxide and nitric acid.
- 23rd August 1955State what is meant by a catalyst.
- 24th August 1955Name the carboxylic acid produced when ethanol is oxidised.
- 25th August 1955State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 26th August 1955Define specific heat capacity.
- 27th August 1955Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 28th August 1955State the number of protons and the number of neutrons in an alpha particle.
- 29th August 1955Define the term 'wavelength' of a wave.
- 30th August 1955State the difference between an alternator and a dynamo.
- 31st August 1955Name the structure in a plant cell that controls the substances entering and leaving the cell.