Electrical Circuits

Most of our energy comes from coal, oil, and natural gas. Together, these are called ______________.

• dirty power

• fossil fuels

• the big 6

• ultimate energy

Fossil fuels are an energy source.

• True

• False

The three major types of fossil fuels are: (more than one answer)

• Coal

• Trees

• Oil

• Dinosaur bones

• Natural gas

Which three things are needed to create fossil fuels? (more than one answer)

• Air

• Heat

• Time

• Pressure

• Electricity

What are two issues with using fossil fuels? (more than one answer)

• They will eventually run out

• They aren't cool anymore

• They are bad for the environment

• Nobody likes them

What is the main fossil fuel that we use to generate electricity in Australia?

• Wind

• Solar

• Water

• Coal

• Hydro

What is the FIRST step in how a coal-fired power station works.

• Heat boils water and turns it into steam.

• A generator converts the rotation energy into electricity.

• Coal is burned to release heat.

• Steam pushes a turbine and makes it rotate.

What is the LAST step in how a coal-fired power station works.

• Heat boils water and turns it into steam.

• A generator converts the rotation energy into electricity.

• Coal is burned to release heat.

• Steam pushes a turbine and makes it rotate.

What does wind power have in common with fossil fuel power plants?

• They are both renewable

• They are both non-renewable

• They both involve a turbine spinning a generator to

  produce electricity

• They both work by burning fuels

• They both generate carbon dioxide during

  operation

What converts the wind energy into electricity?

• The Sun

• The blades of the turbine

• A generator