Daily Practice · GCSE Science
September 1961 5-a-day
Every sheet in September 1961
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 1961A 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.
- 2nd September 1961A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
- 3rd September 1961A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 4th September 1961State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 5th September 1961State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 6th September 1961State three functions of mitosis.
- 7th September 1961What happens to guard cells when a plant is short of water?
- 8th September 1961Write the word equation for photosynthesis.
- 9th September 1961Define the term allele.
- 10th September 1961State one method used to try to maintain biodiversity.
- 11th September 1961Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
- 12th September 1961Why is graphite soft and slippery?
- 13th September 1961Explain the difference between a strong acid and a concentrated acid.
- 14th September 1961A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
- 15th September 1961Explain why carboxylic acids are described as 'weak acids'.
- 16th September 1961Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 17th September 1961Name four energy stores.
- 18th September 1961Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 19th September 1961State one source of natural background radiation and one source of artificial (man-made) background radiation.
- 20th September 1961Explain why ultraviolet radiation can be harmful to human skin.
- 21st September 1961State two ways of inducing a potential difference across a conductor using a magnetic field.
- 22nd September 1961A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
- 23rd September 1961What is an enzyme?
- 24th September 1961Describe phagocytosis.
- 25th September 1961A ruler is released and falls 20 cm before being caught. Using distance = 0.5 x g x time^2 with g = 9.8 m/s^2, calculate the reaction time, to 3 significant figures.
- 26th September 1961Name the equipment used to measure the abundance of a small plant species within a sample area.
- 27th September 1961State the two main steps used to produce potable water from a fresh water source.
- 28th September 1961State the charge on a calcium ion (Group 2).
- 29th September 1961Give the formula for percentage yield.
- 30th September 1961A student reacts excess zinc powder with 25 cm3 of copper sulfate solution in a polystyrene cup. The starting temperature is 21.0 degrees C and the maximum temperature reached is 58.5 degrees C. Calculate the temperature change.