Daily Practice · GCSE Science
June 2002 - GCSE Science 5-a-day
Every GCSE Science sheet published in June 2002, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in June 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 2002A 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.
- 2nd June 2002A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 3rd June 2002Why do isotopes of an element react in the same way?
- 4th June 2002Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 5th June 2002Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 6th June 2002Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 7th June 2002State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 8th June 2002State the two products of the complete combustion of a hydrocarbon fuel.
- 9th June 2002State one way to increase the efficiency of a motor.
- 10th June 2002Why is the density of a gas much lower than that of the same substance as a liquid?
- 11th June 2002A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
- 12th June 2002Sound 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.
- 13th June 2002State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 14th June 2002Name two structures found in a plant cell but not in an animal cell.
- 15th June 2002Why is the wall of the left ventricle thicker than that of the right ventricle?
- 16th June 2002Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
- 17th June 2002Name the gland often called the body's master gland.
- 18th June 2002State one abiotic factor that can affect the population of fish living in a pond.
- 19th June 2002State what is meant by sustainable development.
- 20th June 2002What type of bonding is present in a compound formed between a metal and a non-metal?
- 21st June 2002State the pH value of a neutral solution.
- 22nd June 2002State the two substances that react inside a hydrogen fuel cell.
- 23rd June 2002State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 24th June 2002Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
- 25th June 2002A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
- 26th June 2002State the potential difference and frequency of the UK mains supply.
- 27th June 2002What did Bohr add to the nuclear model?
- 28th June 2002State the equation that links pressure, force and area.
- 29th June 2002In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 30th June 2002Why must the same volume of solution be used in every tube in an enzyme investigation?