Daily Practice · GCSE Science
February 1986 5-a-day
Every sheet in February 1986
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1986Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 2nd February 1986State the approximate percentage of nitrogen in today's atmosphere.
- 3rd February 1986A spring is compressed. Which energy store increases?
- 4th February 1986Calculate the current drawn by a 1150 W kettle on a 230 V supply.
- 5th February 1986State the approximate radius of a nucleus compared with the radius of an atom.
- 6th February 1986A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 7th February 1986A rectangular coil carrying a current is placed in a magnetic field, with its two long sides parallel to each other. Explain why the coil rotates rather than moving in a straight line.
- 8th February 1986State the difference between resolution and accuracy.
- 9th February 1986Name the organ system responsible for breaking food down into small, soluble molecules.
- 10th February 1986How do bacteria make a person feel ill?
- 11th February 1986Define homeostasis.
- 12th February 1986Give one example of variation that is caused purely by the environment rather than by genes.
- 13th February 1986An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 14th February 1986On what property are elements ordered in the modern periodic table?
- 15th February 1986In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
- 16th February 1986Give one everyday example of an endothermic process.
- 17th February 1986In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 18th February 1986Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
- 19th February 1986State the equation for work done.
- 20th February 1986A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 21st February 1986State the relationship between pressure and volume for a fixed mass of gas at constant temperature.
- 22nd February 1986A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 23rd February 1986Name the type of electromagnetic wave used by a television remote control.
- 24th February 1986Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 25th February 1986Where in a plant are stem cells found?
- 26th February 1986Name the process by which dissolved sugars are transported in the phloem.
- 27th February 1986Why is photosynthesis described as endothermic?
- 28th February 1986Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.