Renewables lesson 4 - wind, solar, biomass, geothermal

Which one of the energy sources listed below is renewable?

• coal

• biomass

• natural gas

• petroleum oil

Solar cells operate by converting

• heat to electrical energy

• light to electrical energy

• biomass to electrical energy

• thermal to electrical energy

What type of energy comes from heated groundwater

• hydro-electric

• geothermal

• biomass

• solar

Biofuel is best described as energy produced from

• a hydrogen cell

• burning coal

• plant matter

• crude oil

Which of the following is an example of a technological development used by coal-fired stations to reduce their environmental impact?

• Burning off captured gases

• Using carbon capture and storage

• Using brown coal instead of black coal

• Applying thin-film solar photovoltaic technology

Coal, petroleum, natural gas, and propane are fossil fuels. They are called fossil fuels because:

• they are burned to release energy and they cause air pollution

• they were formed from the buried remains of plants and tiny animals that lived hundred of millions of years ago

• they are nonrenewable and will run out

• they are mixed with fossils to provide energy

In a nuclear power plant, uranium atoms

• combine and give off heat energy

• split and give off heat energy

• burn and give off heat energy

• split and give off electrons

Identify two features of the wind turbine that could be modified to improve its efficiency

Describe an innovation that is being developed to improve the efficiency of coal power

Name a device used to transform solar into electrical energy