Chapter 19: Conventional Energy Flashcards
Work
The measure of a force moved over a distance; W=Fd
Joule (J)
Work and energy units
Power
The rate of energy flow or the rate at which work is done; Power= Work/Time
Watt
Power Unit
1 watt equals what?
1 Joule per second
1 kilowatt equals what?
1000 watts
Fossil fuels include what?
Petroleum (crude oil), natural gas, and coal
Electricity is measured in what?
kwh or kilowatt hours
What are three examples of fossil fuels?
Petroleum (crude oil), natural gas, and coal
What do all fossil fuels have in common?
They were once living things
Fossil fuels account for __% of the world’s commercial energy needs. Fill in the blank.
87%
What two energy sources account for 6% of the world’s commercial energy needs?
Nuclear and hydroelectric
The remaining 1% includes ______, ______, etc… Fill in the blank.
Solar; Wind
What country is the world’s fastest growing oil consumer?
China
What country’s oil consumption has doubled since 1992?
India
Political alliances around the world are being made over ___. Fill in the blank.
Oil
What fossil fuel accounts for 43% of the United States’ energy use?
Oil
Before what year was the U.S. the largest exporter of oil?
1947
Now the U.S. is the largest _____. Fill in the blank.
Importer (One receiving product)
What country supplies the United States the most in oil exports?
Canada
Why do Americans think all or most of our oil comes from the Middle East?
Media
What three things in the United States consume the most oil?
Industry (34%)
Transportation (38%)
Homes (21%)
Since coal-burning power plants are not that efficient, they lose energy. What fraction of energy do they lose?
2/3
What percent of petroleum is lost in transportation, etc…?
75%
What fossil fuel is the most efficient, and at what percent?
Natural gas; About 90%.
Coal
Fossilized plant material
When were most coal deposits laid down?
Carboniferous Period of Geologic Time
World coal deposits are __ times greater than oil deposits. Fill in the blank.
10
Proven Reserves
Coal deposits that are mapped, measured, and shown to be economically recoverable.
Coal is concentrated in what five countries?
U.S., Russia, China, India, Australia
