Daily Practice · GCSE Science
September 1975 5-a-day
Every sheet in September 1975
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 1975State what is meant by the activation energy of a reaction.
- 2nd September 1975State what happens to the boiling point of hydrocarbons as their chain length increases.
- 3rd September 1975Explain why the baseline is drawn in pencil rather than ink.
- 4th September 1975Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 5th September 1975State the equation linking potential difference, current and resistance.
- 6th September 1975Define half-life.
- 7th September 1975A 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.
- 8th September 1975Describe the shape of the magnetic field produced around a long straight wire carrying a current.
- 9th September 1975State how the amount of red-shift is related to a galaxy's distance from Earth.
- 10th September 1975Define osmosis.
- 11th September 1975State one way that pathogens can be spread from person to person.
- 12th September 1975State the word equation for anaerobic respiration in human muscle cells.
- 13th September 1975State whether cystic fibrosis is caused by a dominant or a recessive allele.
- 14th September 1975A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 15th September 1975Why do isotopes of an element react in the same way?
- 16th September 1975Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 17th September 1975Aqueous 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.
- 18th September 1975In the disappearing cross required practical, state the dependent variable that is measured.
- 19th September 1975State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 20th September 1975State the two products of the complete combustion of a hydrocarbon fuel.
- 21st September 1975State one way to increase the efficiency of a motor.
- 22nd September 1975Why is the density of a gas much lower than that of the same substance as a liquid?
- 23rd September 1975State whether friction is a contact force or a non-contact force.
- 24th September 1975A water wave has a wavelength of 0.4 m and a frequency of 2.5 Hz. Calculate its speed.
- 25th September 1975Explain how elements heavier than iron, such as gold, are created and distributed through the universe.
- 26th September 1975Name two structures found in a plant cell but not in an animal cell.
- 27th September 1975Why is the wall of the left ventricle thicker than that of the right ventricle?
- 28th September 1975Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 29th September 1975State the type of diabetes in which the pancreas produces little or no insulin.
- 30th September 1975State one abiotic factor that can affect the population of fish living in a pond.