Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
4th November 2024
- 1Circuits, Resistance and Components
Define electric current.
- 2Mains Electricity, Power and Energy
Why does the national grid transmit electricity at a very high potential difference?
- 3Particle Model of Matter
A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 4Density and the Particle Model of Matter
Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 5Particle Motion, Gas Pressure and Temperature
A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
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