Daily Practice · GCSE Science
February 1974 5-a-day
Every sheet in February 1974
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1974Name the four stages usually considered in a life cycle assessment of a product.
- 2nd February 1974A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 3rd February 1974State two reasons why a percentage yield is less than 100 percent.
- 4th February 1974State what is meant by the activation energy of a reaction.
- 5th February 1974State the general formula of the alkanes.
- 6th February 1974Explain why the baseline is drawn in pencil rather than ink.
- 7th February 1974Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 8th February 1974State the equation linking potential difference, current and resistance.
- 9th February 1974Define half-life.
- 10th February 1974Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 11th February 1974Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 12th February 1974Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 13th February 1974Define osmosis.
- 14th February 1974Which type of pathogen causes athlete's foot, a fungal skin infection?
- 15th February 1974A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 16th February 1974State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 17th February 1974A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 18th February 1974Why do isotopes of an element react in the same way?
- 19th February 1974Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 20th February 1974In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 21st February 1974State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 22nd February 1974State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 23rd February 1974State the two products of the complete combustion of a hydrocarbon fuel.
- 24th February 1974State one way to increase the efficiency of a motor.
- 25th February 1974Why is the density of a gas much lower than that of the same substance as a liquid?
- 26th February 1974A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
- 27th February 1974A wave has a period of 0.005 s. Calculate its frequency.
- 28th February 1974State the difference between a natural satellite and an artificial satellite, and give one example of each.