Daily Practice · GCSE Science
April 1978 5-a-day
Every sheet in April 1978
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1978State the difference between resolution and accuracy.
- 2nd April 1978An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 3rd April 1978How do bacteria make a person feel ill?
- 4th April 1978Name the three parts common to every homeostatic control system.
- 5th April 1978State one advantage and one disadvantage of selective breeding in farm animals.
- 6th April 1978An atom has atomic number 11 and mass number 23. State the number of protons.
- 7th April 1978On what property are elements ordered in the modern periodic table?
- 8th April 1978In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
- 9th April 1978State whether the combustion of methane is exothermic or endothermic.
- 10th April 1978In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 11th April 1978Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
- 12th April 1978State the equation for work done.
- 13th April 1978Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 14th April 1978State the relationship between pressure and volume for a fixed mass of gas at constant temperature.
- 15th April 1978A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 16th April 1978A microwave oven uses electromagnetic waves with a wavelength of 0.12 m. Calculate the frequency of these waves (speed of light = 3 x 10^8 m/s).
- 17th April 1978Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
- 18th April 1978Where in a plant are stem cells found?
- 19th April 1978Name the process by which dissolved sugars are transported in the phloem.
- 20th April 1978Why is photosynthesis described as endothermic?
- 21st April 1978Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 22nd April 1978State one human activity that reduces the amount of land available for other organisms.
- 23rd April 1978State the two substances that must both be present for iron to rust.
- 24th April 1978State the size range of a nanoparticle.
- 25th April 1978Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 26th April 1978Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 27th April 1978State the functional group found in all alcohols.
- 28th April 1978Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.
- 29th April 1978What happens to the energy described as 'wasted' in a transfer?
- 30th April 1978State the correct SI unit for density.