WorksheetsGeneration, Transmission and Distribution
Total questions: 10
Worksheet time: 5mins
The main way of generating electricity in the UK is via:
wind turbines
electromagnetic induction
solar PV
steam engines
Electricity is generated at:
275kV
66kV
25kV
11kV
Transformers are used in transmission because:
they can keep the transmission lines cool
they can change potential energy into kinetic energy
they are highly efficient
they are able to step voltages up and down
In a power station steam drives a:
turbine that turns a generator to produce electricity
generator that turns a turbine to produce electricity
Which is not a biofuel?
animal waste
methane
ethanol
coal
The definition of renewable is:
replenishes at a rate > rate of consumption
energy sources that can be replaced and quickly replenished
replenishes at a rate < rate of consumption
Where does the energy for hydroelectricity come from?
gravity
heat energy
kinetic energy
Why is tidal power more reliable than wind energy?
we don't know when its going to be windy
tides are hard to predict
we have two tides every day
its always windy
Which of the following is NOT a disadvantage of solar cells?
very expensive
convert <10% of solar energy absorbed into electrical energy
cost nothing to run
can't always rely on it being sunny
The national grid voltage is:
132 000V or more
32 000V or more
240V or less
140V or less
