Approximately what percentage of U.S. energy consumption is currently provided by "geofuels" (oil, natural gas, coal)? - CORRECT ANSWER-85%
The largest source of oil imports to the U.S. is:(country)? - CORRECT ANSWER-Canada
According to M. King Hubbert's estimate in the 1950s, U.S. oil produc...
EXAM 1 - GEO SCI 411 Questions With
Complete solutions Graded A+
Approximately what percentage of U.S. energy consumption is currently provided by
"geofuels" (oil, natural gas, coal)? - CORRECT ANSWER-85%
The largest source of oil imports to the U.S. is:(country)? - CORRECT ANSWER-
Canada
According to M. King Hubbert's estimate in the 1950s, U.S. oil production was expected
to reach its peak in approximately what year? - CORRECT ANSWER-between 1965
and 1970
Which country has the lowest primary energy consumption? - CORRECT ANSWER-
Sweden
Which country has the highest primary energy consumption? - CORRECT ANSWER-
United States (per capita)
What was the general (long-term) trend in real (inflation-adjusted) gasoline prices in the
U.S. during most of the 20th century? - CORRECT ANSWER-Decreasing
How has U.S. energy consumption per person changed over the past 20 years? -
CORRECT ANSWER-remained about the same
What region of the world has the greatest remaining oil reserves? - CORRECT
ANSWER-Persian Gulf Region
How has U.S. natural gas production changed during the past 5 years? - CORRECT
ANSWER-Increased
,Which of the following is the best definition of "energy"? - CORRECT ANSWER-The
capacity to do work (or produce heat, light, etc)
Which of the following is the best definition of "power"? - CORRECT ANSWER-The rate
at which energy is transferred
What is a Watt? - CORRECT ANSWER-SI unit of Power (joules/sec)
What term best describes the energy stored in fossil fuels? - CORRECT ANSWER-
Chemical potential energy
Which of the following is a statement of the First Law of Thermodynamics? - CORRECT
ANSWER-Energy cannot be created or destroyed, only converted (You can't win)
Which of the following is a statement of the Second Law of Thermodynamics? -
CORRECT ANSWER-Energy efficiency; there is always loss in every energy
transaction (You can't even break even)
Which of the following is the equation for Carnot efficiency? - CORRECT ANSWER-
Maximum possible efficiency = 1 - (Tc/Th)
[T_cold/T_hot] expressed in Kelvin
How many gallons are in a "barrel" of oil? - CORRECT ANSWER-42 gallons
Which of the following energy sources are ultimately derived from solar energy? -
CORRECT ANSWER-Wind, waves, hydroelectric, biofuels, fossil fuels
What is the ultimate source of most of the energy that we presently use? - CORRECT
ANSWER-Solar energy (which is technically due to gravity)
Approximately how much oil had the world already consumed prior to 2004? -
CORRECT ANSWER-1 Trillion Barrels
, Windmills are universally loved by everyone, not just the Dutch. T/F - CORRECT
ANSWER-False
Hybrid SUVs are the key to America's energy future. T/F - CORRECT ANSWER-False
The use of coal for electric generation in the U.S. has been steadily decreasing through
time. T/F - CORRECT ANSWER-True
Most of the electricity used at UW-Madison comes from coal burning. T/F - CORRECT
ANSWER-False
Most geologists agree that the remaining recoverable worldwide reserves of oil are less
than 1 trillion barrels. T/F - CORRECT ANSWER-False
Hydroelectric energy is ultimately another form of solar energy. T/F - CORRECT
ANSWER-True
Wind energy is ultimately another form of solar energy. T/F - CORRECT ANSWER-True
Power is the rate at which energy is transferred. T/F - CORRECT ANSWER-True
Energy can be transferred from one form to another without loss. T/F - CORRECT
ANSWER-False
Solar energy comes from nuclear fusion. T/F - CORRECT ANSWER-True
Burning of natural gas emits only about half as much CO2 as coal, for the same energy
output. T/F - CORRECT ANSWER-True
Unused land that could be used to grow biofuels is readily available in many areas of
the world. T/F - CORRECT ANSWER-True
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