Daily Practice · GCSE Science
April 1965 5-a-day
Every sheet in April 1965
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1965A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 2nd April 1965State what is meant by dynamic equilibrium.
- 3rd April 1965Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 4th April 1965Write the equation linking power, energy and time, and rearrange it for time.
- 5th April 1965State the UK mains supply frequency and typical potential difference.
- 6th April 1965A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 7th April 1965A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 8th April 1965State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 9th April 1965State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 10th April 1965Define an undifferentiated cell.
- 11th April 1965Which tissue transports water and mineral ions from the roots?
- 12th April 1965Give three uses of the glucose produced in photosynthesis.
- 13th April 1965Define the term allele.
- 14th April 1965A peat bog covered an area of 850 hectares in 2015. By 2025, drainage for farmland had reduced the peat bog to 680 hectares. Calculate the percentage decrease in the area of the peat bog.
- 15th April 1965Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
- 16th April 1965Why do polymers have higher melting points than small molecules such as methane?
- 17th April 1965Complete: acid + metal carbonate gives ...
- 18th April 1965State the four factors that can increase the rate of a chemical reaction.
- 19th April 1965Explain why carboxylic acids are described as 'weak acids'.
- 20th April 1965Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 21st April 1965By what factor does kinetic energy increase if speed is doubled?
- 22nd April 1965A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 23rd April 1965Define the term 'half-life' of a radioactive isotope.
- 24th April 1965Explain why ultraviolet radiation can be harmful to human skin.
- 25th April 1965State two ways of inducing a potential difference across a conductor using a magnetic field.
- 26th April 1965State one structure found in a bacterial cell but not in an animal cell.
- 27th April 1965Describe the positive result of the Biuret test.
- 28th April 1965What is tested during preclinical testing?
- 29th April 1965A 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.
- 30th April 1965Name the equipment used to measure the abundance of a small plant species within a sample area.