Daily Practice · GCSE Science
May 1989 5-a-day
Every sheet in May 1989
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1989Explain the difference between irradiation and contamination.
- 2nd May 1989Name the type of electromagnetic wave used to sterilise medical equipment.
- 3rd May 1989A 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.
- 4th May 1989Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 5th May 1989Name the products of protein digestion.
- 6th May 1989State the difference between an antibiotic and a painkiller.
- 7th May 1989Explain why reflex responses are faster than voluntary responses.
- 8th May 1989Define community, in ecological terms.
- 9th May 1989Name two methods of desalinating seawater.
- 10th May 1989Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 11th May 1989Convert 250 cubic centimetres into cubic decimetres.
- 12th May 1989A student heats solid copper carbonate strongly in a test tube, and it breaks down into copper oxide and carbon dioxide. Heating must be continued throughout the reaction for it to keep going. State whether this thermal decomposition reaction is exothermic or endothermic, and explain your reasoning.
- 13th May 1989Name the two industrial methods of cracking.
- 14th May 1989Write the formula for calculating an Rf value.
- 15th May 1989Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
- 16th May 1989What happens to the total resistance when a second resistor is added in parallel, and why?
- 17th May 1989What happens inside the nucleus when a beta particle is emitted?
- 18th May 1989Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
- 19th May 1989State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
- 20th May 1989State what red-shift shows about the motion of most distant galaxies.
- 21st May 1989State three factors that increase the rate of diffusion.
- 22nd May 1989Describe how phagocytes destroy pathogens in the body.
- 23rd May 1989State the word equation for aerobic respiration.
- 24th May 1989State one ethical concern raised by embryo screening.
- 25th May 1989What does 'concordant' mean when applied to titres?
- 26th May 1989What did the alpha scattering experiment show that the plum pudding model could not explain?
- 27th May 1989Magnesium is burned in an open crucible and the mass increases. Explain why.
- 28th May 1989State the name given to the negative electrode in electrolysis.
- 29th May 1989Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
- 30th May 1989Describe the result of the test for carbon dioxide.
- 31st May 1989Give one piece of evidence used to link human activity to recent climate change.