Daily Practice

GCSE Science

24th November 1990

5 questions · GCSE · 584 questions in this band

1
Energy Stores, Transfers and Calculations
What happens to the energy described as 'wasted' in a transfer?
2
Efficiency, Power and Energy Resources
Define power and give its unit.
3
Electricity
A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
4
Circuits, Resistance and Components
Define electric current.
5
Mains Electricity, Power and Energy
Why does the national grid transmit electricity at a very high potential difference?

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