What is the difference between primary and secondary sources of energy?

How has our choice of energy sources changed over time and what problems could this could?

What is the equation for energy transferred?

What is the equation for power?

A lightbulb changes 100J of electrical energy into 10J of light energy and 90J of heat energy, draw a Sankey diagram.

Define energy efficiency

How do generators produce electricity?

What are the main stages in producing electricity from fossil fuels?

Outline how energy is produce in nuclear power stations.

What is the difference between irradiation and contamination? How does this link to nuclear power stations?

Give two examples of renewable energy sources and for each identify the positives and negatives.

Why must a balance by reached between voltage and current when supplying electricity?