Chapter 19: Conventional Energy Flashcards

1
Q

Work

A

The measure of a force moved over a distance; W=Fd

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2
Q

Joule (J)

A

Work and energy units

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3
Q

Power

A

The rate of energy flow or the rate at which work is done; Power= Work/Time

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4
Q

Watt

A

Power Unit

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5
Q

1 watt equals what?

A

1 Joule per second

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6
Q

1 kilowatt equals what?

A

1000 watts

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7
Q

Fossil fuels include what?

A

Petroleum (crude oil), natural gas, and coal

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8
Q

Electricity is measured in what?

A

kwh or kilowatt hours

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9
Q

What are three examples of fossil fuels?

A

Petroleum (crude oil), natural gas, and coal

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10
Q

What do all fossil fuels have in common?

A

They were once living things

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11
Q

Fossil fuels account for __% of the world’s commercial energy needs. Fill in the blank.

A

87%

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12
Q

What two energy sources account for 6% of the world’s commercial energy needs?

A

Nuclear and hydroelectric

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13
Q

The remaining 1% includes ______, ______, etc… Fill in the blank.

A

Solar; Wind

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14
Q

What country is the world’s fastest growing oil consumer?

A

China

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15
Q

What country’s oil consumption has doubled since 1992?

A

India

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16
Q

Political alliances around the world are being made over ___. Fill in the blank.

17
Q

What fossil fuel accounts for 43% of the United States’ energy use?

18
Q

Before what year was the U.S. the largest exporter of oil?

19
Q

Now the U.S. is the largest _____. Fill in the blank.

A

Importer (One receiving product)

20
Q

What country supplies the United States the most in oil exports?

21
Q

Why do Americans think all or most of our oil comes from the Middle East?

22
Q

What three things in the United States consume the most oil?

A

Industry (34%)
Transportation (38%)
Homes (21%)

23
Q

Since coal-burning power plants are not that efficient, they lose energy. What fraction of energy do they lose?

24
Q

What percent of petroleum is lost in transportation, etc…?

25
What fossil fuel is the most efficient, and at what percent?
Natural gas; About 90%.
26
Coal
Fossilized plant material
27
When were most coal deposits laid down?
Carboniferous Period of Geologic Time
28
World coal deposits are __ times greater than oil deposits. Fill in the blank.
10
29
Proven Reserves
Coal deposits that are mapped, measured, and shown to be economically recoverable.
30
Coal is concentrated in what five countries?
U.S., Russia, China, India, Australia