EASY
Lower Secondary Stage 9
IMPORTANT
Earn 100

The bar chart given below shows the amount of energy released per kg of fuel for different energy sources.

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Uranium used in nuclear power stations is not shown on the chart because it contains 81000000 kJ per kg.

Suggest one reason why the fuel with the lowest output per kg is not widely used.

Important Questions on Energy

EASY
Lower Secondary Stage 9
IMPORTANT

The bar chart given below shows the amount of energy released per kg of fuel for different energy sources.

Question Image

Uranium used in nuclear power stations is not shown on the chart because it contains 81000000 kJ per kg.

The energy output of coal is x kJ. What is the value of x?

EASY
Lower Secondary Stage 9
IMPORTANT

Look at the diagram of a nuclear power station.
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Write down the type of energy produced by fuel at A.

EASY
Lower Secondary Stage 9
IMPORTANT

Look at the diagram of a nuclear power station.
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Describe the energy transfer that takes place between the steam generator B and the turbine C.

EASY
Lower Secondary Stage 9
IMPORTANT

Look at the diagram of a nuclear power station.
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Write down the type of energy produced at D.

EASY
Lower Secondary Stage 9
IMPORTANT

Give one reason why deforestation happens.

EASY
Lower Secondary Stage 9
IMPORTANT
Give one disadvantage of deforestation.
EASY
Lower Secondary Stage 9
IMPORTANT

What are the differences between wave energy, tidal energy, and hydroelectricity?

EASY
Lower Secondary Stage 9
IMPORTANT

Most methods of generating electricity do so by spinning a turbine and regenerator. Explain how this generates electricity.