Daily Practice · GCSE Science
August 2014 - GCSE Science 5-a-day
Every GCSE Science sheet published in August 2014, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in August 2014
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2014A person's blood glucose concentration is 4.8 mmol/dm^3 before breakfast and 7.2 mmol/dm^3 after breakfast. Calculate the increase in blood glucose concentration.
- 2nd August 2014In 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.
- 3rd August 2014State what is meant by sustainable development.
- 4th August 2014Give the charge on an ion formed by a group 2 element.
- 5th August 2014State the pH value of a neutral solution.
- 6th August 2014State one factor that affects the size of the voltage produced by a chemical cell.
- 7th August 2014Propene (C3H6) reacts with steam in the presence of a catalyst. Name the catalyst, and name the type of compound formed.
- 8th August 2014Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
- 9th August 2014A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
- 10th August 2014Why is the live wire dangerous even when a device is switched off?
- 11th August 2014Describe the plum pudding model.
- 12th August 2014State two factors, other than depth, that affect the pressure at a given point in a liquid.
- 13th August 2014State the name of the rule used to find the direction of the force on a current-carrying wire in a magnetic field, and name the three quantities it relates.
- 14th August 2014Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
- 15th August 2014An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 16th August 2014Define a communicable disease.
- 17th August 2014State what is meant by negative feedback.
- 18th August 2014Name the scientist who proposed the three-domain system of classification, and name the three domains.
- 19th August 2014An atom has atomic number 11 and mass number 23. State the number of protons.
- 20th August 2014Explain why potassium is more reactive than sodium.
- 21st August 2014Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 22nd August 2014State whether the combustion of methane is exothermic or endothermic.
- 23rd August 2014State the effect of increasing the temperature on the position of equilibrium of a reaction whose forward reaction is exothermic.
- 24th August 2014A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
- 25th August 2014A device transfers 4500 J in 90 s. Calculate its power.
- 26th August 2014Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 27th August 2014Why does a bicycle pump get warm when used?
- 28th August 2014A car's velocity increases from 8 m/s to 20 m/s over 4 seconds. Calculate its acceleration.
- 29th August 2014State one medical use of X-rays and one safety precaution taken when X-rays are used in a hospital.
- 30th August 2014State two uses of artificial satellites.
- 31st August 2014What happens to the DNA before mitosis begins?