Daily Practice · GCSE Science

Daily Practice - GCSE Science

26th January 1999

5 questions · GCSE · 584 questions in this band

1
Efficiency, Power and Energy Resources
Define power and give its unit.
2
Electricity
A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
3
Circuits, Resistance and Components
Define electric current.
4
Mains Electricity, Power and Energy
Why does the national grid transmit electricity at a very high potential difference?
5
Particle Model of Matter
State the correct SI unit for density.

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