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Environmental
exam 3: Intro to energy
20
Environmental Studies
Undergraduate 2
12/01/2012

Additional Environmental Studies Flashcards

 


 

Cards

Term
history in energy in the US shows an increase in these two things?
Definition
1. total consumption 2. Increasing diversity of energy sources
Term
newer energy sources were previously unavailable but now are because
Definition
of technological break throughs
Term
Increasing energy consumption is due to these to things
Definition
1. increasing population 2. increasing energy intensity (consumption per capita)
Term
from 1949 to 2000 there was this % change in total energy consumption (in u.s.)
Definition
208 increase
Term
6 benefits of increased energy intensity
Definition

1.synonymous for development 2. supports technological innovations 3. faster wider spread communication 4. faster more voluminous transportation 6. Supports a larger human population 7. supports a human population longer

 

development tech innovations communication transportation population population longer

Term
____ quads of primary energy consumption in the U.s. 2009
Definition
94.6
Term
Primary energy sources
Definition
fossil fuels, hydropower, nuclear energy, wind energy etc.
Term
primary energy source
Definition
energy stored within; can be extracted to do useful work
Term
secondary energy sources
Definition
electricity and an energy carrier
Term
almost any primary energy source can be converted into
Definition
electricity
Term
what tool converts primary energy into secondary?
Definition
turbogenerator
Term
coal can be _______ or _______ but it is expensive
Definition
liquified or gasified
Term
energy transformations are
Definition
inefficient
Term
38.19 quads of primary energy converts to ____ quads secondary
Definition
12.08
Term
____% of energy is lost when converting primary to secondary energy
Definition
68.4%
Term
most versatile form of energy
Definition
electricity
Term
electricity is
Definition
easily transformed and converted back into heat motion light etc. (never see electric airplane
Term
most energy dense form of energy
Definition
nuclear energy
Term
most transportable form of dense energy
Definition
liquid fossil fuels
Term
most abundant fossil fuel
Definition
coal
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