Daily Practice · GCSE Science
February 1954 5-a-day
Every sheet in February 1954
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1954State whether sound waves are transverse or longitudinal.
- 2nd February 1954State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 3rd February 1954Convert 0.02 mm into micrometres (um).
- 4th February 1954Why does a food test for sugars need a water bath?
- 5th February 1954Explain what is meant by a double blind trial.
- 6th February 1954State why a reflex action is described as involuntary.
- 7th February 1954A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.
- 8th February 1954State one benefit of recycling metal rather than extracting new metal from its ore.
- 9th February 1954Name the three types of strong chemical bonding.
- 10th February 1954Give the formula for atom economy.
- 11th February 1954Explain, in terms of the reaction pathway, why adding a catalyst increases the rate of a reaction without changing the overall energy change of the reaction.
- 12th February 1954State what happens to the boiling point of hydrocarbons as their chain length increases.
- 13th February 1954State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 14th February 1954How is the uncertainty in a set of repeated readings usually estimated?
- 15th February 1954Define electric current.
- 16th February 1954A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 17th February 1954A skateboarder of mass 55 kg moving at 4 m/s collides with and grabs onto a stationary shopping trolley of mass 20 kg, and they move off together. Calculate their combined velocity immediately after the collision.
- 18th February 1954Describe the shape of the magnetic field produced around a long straight wire carrying a current.
- 19th February 1954State how the amount of red-shift is related to a galaxy's distance from Earth.
- 20th February 1954Calculate the surface area to volume ratio of a cube of side 2 cm.
- 21st February 1954State one way that pathogens can be spread from person to person.
- 22nd February 1954State the word equation for anaerobic respiration in human muscle cells.
- 23rd February 1954State whether cystic fibrosis is caused by a dominant or a recessive allele.
- 24th February 1954Give the resolution of a burette that can be read to the nearest half of a small division.
- 25th February 1954Why is an atom electrically neutral?
- 26th February 1954State the law of conservation of mass.
- 27th February 1954Aqueous copper sulfate solution is electrolysed using inert graphite electrodes. State the products formed at (a) the cathode and (b) the anode, giving a reason for each.
- 28th February 1954In the disappearing cross required practical, state the dependent variable that is measured.