Daily Practice · GCSE Science
November 1989 5-a-day
Every sheet in November 1989
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1989Define osmosis.
- 2nd November 1989Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
- 3rd November 1989A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.
- 4th November 1989A man who is a known carrier of cystic fibrosis (Ff) has children with a woman who has been confirmed to carry no cystic fibrosis allele at all (FF). Explain why none of their children can have cystic fibrosis.
- 5th November 1989A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 6th November 1989Why do isotopes of an element react in the same way?
- 7th November 1989Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 8th November 1989Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 9th November 1989Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 10th November 1989State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 11th November 1989State the two products of the complete combustion of a hydrocarbon fuel.
- 12th November 1989State one way to increase the efficiency of a motor.
- 13th November 1989Why is the density of a gas much lower than that of the same substance as a liquid?
- 14th November 1989A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 15th November 1989Sound waves travel through a steel rail at approximately 5900 m/s. A sound wave sent along the rail has a frequency of 2950 Hz. Calculate its wavelength.
- 16th November 1989State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 17th November 1989Name two structures found in a plant cell but not in an animal cell.
- 18th November 1989Why is the wall of the left ventricle thicker than that of the right ventricle?
- 19th November 1989A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
- 20th November 1989Name the gland often called the body's master gland.
- 21st November 1989State one abiotic factor that can affect the population of fish living in a pond.
- 22nd November 1989Classify crude oil as finite or renewable, and justify your answer.
- 23rd November 1989What type of bonding is present in a compound formed between a metal and a non-metal?
- 24th November 1989Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
- 25th November 1989State the two substances that react inside a hydrogen fuel cell.
- 26th November 1989State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 27th November 1989Give two human activities that increase the amount of greenhouse gases in the atmosphere.
- 28th November 1989A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
- 29th November 1989State the potential difference and frequency of the UK mains supply.
- 30th November 1989What did Bohr add to the nuclear model?