Daily Practice · GCSE Science
July 2005 - GCSE Science 5-a-day
Every GCSE Science sheet published in July 2005, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in July 2005
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 2005Name the type of electromagnetic wave used to sterilise medical equipment.
- 2nd July 2005A transformer has a primary current of 2.0 A and a primary voltage of 230 V. The secondary voltage is 460 V. Assuming the transformer is 100 percent efficient, calculate the secondary current.
- 3rd July 2005Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 4th July 2005State two functions of bile.
- 5th July 2005What is an antigen?
- 6th July 2005Explain why reflex responses are faster than voluntary responses.
- 7th July 2005Define community, in ecological terms.
- 8th July 2005Name two methods of desalinating seawater.
- 9th July 2005Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 10th July 2005State two reasons why a percentage yield is less than 100 percent.
- 11th July 2005State what is meant by the activation energy of a reaction.
- 12th July 2005Name the two industrial methods of cracking.
- 13th July 2005Explain why the baseline is drawn in pencil rather than ink.
- 14th July 2005Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 15th July 2005State the equation linking potential difference, current and resistance.
- 16th July 2005Define half-life.
- 17th July 2005Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
- 18th July 2005State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
- 19th July 2005State what red-shift shows about the motion of most distant galaxies.
- 20th July 2005Define osmosis.
- 21st July 2005Describe how phagocytes destroy pathogens in the body.
- 22nd July 2005State the word equation for aerobic respiration.
- 23rd July 2005State one ethical concern raised by embryo screening.
- 24th July 2005A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 25th July 2005Why do isotopes of an element react in the same way?
- 26th July 2005Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 27th July 2005State the name given to the negative electrode in electrolysis.
- 28th July 2005Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
- 29th July 2005State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 30th July 2005State the two products of the complete combustion of a hydrocarbon fuel.
- 31st July 2005State one way to increase the efficiency of a motor.