Daily Practice · GCSE Science

Daily Practice - GCSE Science

Biology, chemistry and physics recall, definition and calculation, drawn from every strand.

17th July 2023

5 questions · GCSE · 584 questions in this band

1
Efficiency, Power and Energy Resources
A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
2
Electricity
Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
3
Circuits, Resistance and Components
In a parallel circuit, how do the branch currents relate to the total current?
4
Mains Electricity, Power and Energy
State the potential difference and frequency of the UK mains supply.
5
Particle Model of Matter
Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.

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