Daily Practice · GCSE Science

Daily Practice - GCSE Science

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

29th September 2021

5 questions · GCSE · 584 questions in this band

1
Efficiency, Power and Energy Resources
Why can no device be 100 percent efficient?
2
Electricity
A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
3
Circuits, Resistance and Components
What happens to the total resistance when a second resistor is added in parallel, and why?
4
Mains Electricity, Power and Energy
Give the colour and function of the earth wire.
5
Particle Model of Matter
A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.

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