Daily Practice · GCSE Science
August 1957 5-a-day
Every sheet in August 1957
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 1957Why does the national grid transmit electricity at a very high potential difference?
- 2nd August 1957Why is the atomic model a good example of how scientific models change?
- 3rd August 1957State the equation that links pressure, force and area.
- 4th August 1957In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 5th August 1957Define the independent variable.
- 6th August 1957State two ways that bile aids the digestion of fats.
- 7th August 1957Name the type of pathogen that causes malaria.
- 8th August 1957Name the gland that monitors and controls blood glucose concentration.
- 9th August 1957Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
- 10th August 1957State the relative charge of a neutron.
- 11th August 1957Why are the noble gases unreactive?
- 12th August 1957How many atoms are there in 0.5 mol of helium?
- 13th August 1957A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 14th August 1957State the two named reactants used in the Haber process.
- 15th August 1957Describe the test, and the positive result, for ammonium ions.
- 16th August 1957Convert 3.5 kJ into joules.
- 17th August 1957A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
- 18th August 1957How is the temperature of a gas related to the motion of its molecules?
- 19th August 1957A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.
- 20th August 1957An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 21st August 1957A satellite in a stable, small-radius, close orbit around the Earth is compared with a satellite in a stable, large-radius, distant orbit. State which of the two satellites has the greater orbital speed.
- 22nd August 1957How many pairs of chromosomes are there in a human body cell?
- 23rd August 1957Where are most stomata found on a typical leaf, and why?
- 24th August 1957Name four limiting factors of photosynthesis.
- 25th August 1957Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 26th August 1957State what is meant by the term biodiversity.
- 27th August 1957Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
- 28th August 1957Give one use of nanoparticles and one associated risk.
- 29th August 1957Give the ionic equation for neutralisation.
- 30th August 1957State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).
- 31st August 1957Name the two methods used to produce ethanol industrially.