Daily Practice · GCSE Science
September 1986 5-a-day
Every sheet in September 1986
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 1986State what is meant by the activation energy of a reaction.
- 2nd September 1986State the general formula of the alkanes.
- 3rd September 1986Explain why the baseline is drawn in pencil rather than ink.
- 4th September 1986Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 5th September 1986State the equation linking potential difference, current and resistance.
- 6th September 1986Define half-life.
- 7th September 1986Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 8th September 1986Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 9th September 1986Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 10th September 1986Define osmosis.
- 11th September 1986Describe how phagocytes destroy pathogens in the body.
- 12th September 1986A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 13th September 1986State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 14th September 1986A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 15th September 1986Why do isotopes of an element react in the same way?
- 16th September 1986Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 17th September 1986In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 18th September 1986State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 19th September 1986State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 20th September 1986State the two products of the complete combustion of a hydrocarbon fuel.
- 21st September 1986State one way to increase the efficiency of a motor.
- 22nd September 1986Why is the density of a gas much lower than that of the same substance as a liquid?
- 23rd September 1986Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 24th September 1986A wave has a period of 0.005 s. Calculate its frequency.
- 25th September 1986State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 26th September 1986Name two structures found in a plant cell but not in an animal cell.
- 27th September 1986Why is the wall of the left ventricle thicker than that of the right ventricle?
- 28th September 1986Name the gas that is released as a product of photosynthesis.
- 29th September 1986Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 30th September 1986State one abiotic factor that can affect the population of fish living in a pond.