APES Unit 6 Non-Renewable Energy Test Review

Which fossil fuel is in largest supply worldwide?

Coal

Which nonrenewable source of energy is most abundant in the US?

Coal

Explain EROI

E.nergy R.eturn O.n I.nvestment is a key determinant of the price of energy. When sources of energy that can be tapped relatively cheaply will allow the price to remain low. The ratio decreases when energy becomes scarcer and more difficult to extract or produce.

What is an electrical grid?

How the electricity is distributed after it's run through a generator.

What are the obstacles associated harnessing issue from nuclear fussion?

It gives off so much heat that we cant contain it

Why is Uranium 235 ideal for use in nuclear reactors?

It's highly fissionable

What is cogeneration? How does it affect the efficiency of a power plant?

Making heat and electricity.

What is a combined cycle power plant? How does it affect efficicency?

You divert the exhaust heat (waste exhaust) back to power the turbine.

What are nonrenewable forms of energy? Give examples.

coal, petroleum, and natural gas

What happens to a country's energy demand as the country becomes more developed?

it goes from subsistence (burning wood for personal use), to commercial (electricity and oil companies)