Daily Practice · GCSE Science
May 1998 - GCSE Science 5-a-day
Every sheet in May 1998
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1998Define community, in ecological terms.
- 2nd May 1998Name the four stages usually considered in a life cycle assessment of a product.
- 3rd May 1998A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 4th May 1998Why do companies prefer reactions with a high atom economy?
- 5th May 1998On a reaction profile diagram, the reactants are drawn at a higher energy level than the products. State whether the reaction is exothermic or endothermic.
- 6th May 1998Name the two industrial methods of cracking.
- 7th May 1998Explain why the solvent level in the container must be below the pencil baseline.
- 8th May 1998In the specific heat capacity practical, why is the block insulated?
- 9th May 1998Describe the current-potential difference graph for a filament lamp.
- 10th May 1998State the difference between irradiation and contamination.
- 11th May 1998Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
- 12th May 1998State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
- 13th May 1998State what red-shift shows about the motion of most distant galaxies.
- 14th May 1998Name the process that moves substances against a concentration gradient.
- 15th May 1998Which type of pathogen causes athlete's foot, a fungal skin infection?
- 16th May 1998State the word equation for aerobic respiration.
- 17th May 1998State one ethical concern raised by embryo screening.
- 18th May 1998Why is the burette rinsed with the solution it is going to contain rather than with water?
- 19th May 1998State the relative mass and relative charge of a neutron.
- 20th May 1998Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
- 21st May 1998State the name given to the negative electrode in electrolysis.
- 22nd May 1998Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
- 23rd May 1998Which reagent is added, and in what colour change, to test for chlorine gas?
- 24th May 1998Explain how solid carbon particulates released by combustion can cause global dimming.
- 25th May 1998A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
- 26th May 1998Define specific latent heat of fusion.
- 27th May 1998A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
- 28th May 1998Explain, in terms of particle motion, why a wave can transfer energy without transferring matter.
- 29th May 1998Name the region of the Solar System where most asteroids are found.
- 30th May 1998Give the equation linking magnification, image size and real size.
- 31st May 1998Give one advantage and one disadvantage of a stent.