Daily Practice · GCSE Science
April 1984 5-a-day
Every sheet in April 1984
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1984Explain how solid carbon particulates released by combustion can cause global dimming.
- 2nd April 1984A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
- 3rd April 1984Define specific latent heat of fusion.
- 4th April 1984A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 5th April 1984State the difference between a transverse wave and a longitudinal wave.
- 6th April 1984Name the force that keeps the planets in orbit around the Sun.
- 7th April 1984Give the equation linking magnification, image size and real size.
- 8th April 1984Give one advantage and one disadvantage of a stent.
- 9th April 1984State three factors that can limit the rate of photosynthesis.
- 10th April 1984Explain why sweating cools the body down.
- 11th April 1984State what is meant by the term ecosystem.
- 12th April 1984Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 13th April 1984Describe metallic bonding.
- 14th April 1984Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 15th April 1984State whether breaking a chemical bond requires energy or releases energy.
- 16th April 1984Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 17th April 1984Name three greenhouse gases.
- 18th April 1984A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 19th April 1984Why does the national grid transmit electricity at a very high potential difference?
- 20th April 1984Why is the atomic model a good example of how scientific models change?
- 21st April 1984A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 22nd April 1984A rectangular coil carrying a current is placed in a magnetic field, with its two long sides parallel to each other. Explain why the coil rotates rather than moving in a straight line.
- 23rd April 1984Define the independent variable.
- 24th April 1984Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 25th April 1984Name the type of pathogen that causes malaria.
- 26th April 1984Define homeostasis.
- 27th April 1984Give one example of variation that is caused purely by the environment rather than by genes.
- 28th April 1984Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 29th April 1984Why are the noble gases unreactive?
- 30th April 1984How many atoms are there in 0.5 mol of helium?