Daily Practice · GCSE Science
November 1987 5-a-day
Every sheet in November 1987
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1987Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
- 2nd November 1987A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
- 3rd November 1987Describe the result of the test for carbon dioxide.
- 4th November 1987Give one piece of evidence used to link human activity to recent climate change.
- 5th November 1987Give one advantage and one disadvantage of wind power.
- 6th November 1987Why does the temperature stay constant while a substance boils?
- 7th November 1987State whether friction is a contact force or a non-contact force.
- 8th November 1987State the difference between a transverse wave and a longitudinal wave.
- 9th November 1987Name the force that keeps the planets in orbit around the Sun.
- 10th November 1987Where is the DNA found in a bacterial cell?
- 11th November 1987Name the substance in red blood cells that binds oxygen.
- 12th November 1987Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 13th November 1987Explain why sweating cools the body down.
- 14th November 1987In a grassland food chain, the biomass of grass available is 8400 kg and the biomass transferred to the rabbits that eat it is 940 kg. Calculate the percentage efficiency of biomass transfer from grass to rabbits, to 3 significant figures.
- 15th November 1987Give one reason distillation of seawater requires a large energy input.
- 16th November 1987Give the charge on an ion formed by a group 2 element.
- 17th November 1987A student reacts 2.4 g of magnesium with excess dilute hydrochloric acid: Mg + 2HCl -> MgCl2 + H2. Relative atomic mass of Mg = 24. Calculate the number of moles of hydrogen gas produced.
- 18th November 1987State one factor that affects the size of the voltage produced by a chemical cell.
- 19th November 1987Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 20th November 1987Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
- 21st November 1987Name the energy store associated with a moving car.
- 22nd November 1987Why is the live wire dangerous even when a device is switched off?
- 23rd November 1987Describe the plum pudding model.
- 24th November 1987A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 25th November 1987A 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.
- 26th November 1987Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
- 27th November 1987State the type of large biological molecule that all enzymes are made from.
- 28th November 1987Define a communicable disease.
- 29th November 1987Define homeostasis.
- 30th November 1987Give one example of variation that is caused purely by the environment rather than by genes.