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Ecology test
ecological studies
12
Science
11th Grade
05/16/2011

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Cards

Term
what are fossil fuels?
Definition
crude oil, natural gas & coal
Term
what is petroleum?
Definition
a dark oil consisting of mainly hydrocarbons
Term
what are oil reserves?
Definition
oil deposits that are discovered & are in commercial production
Term
what is nuclear fission?
Definition
the division of nuclei of isotopes of certain heavy metals effected by bombardments
Term
what is nuclear fusion?
Definition
the combination of the nuclei of small atoms to form a larger nucleus
Term
what is a turbine?
Definition
a thing with blades that gets turned by water or steam
Term
what is a generator?
Definition
sometimes coupled to a turbine, makes electricity when turned
Term
what's a reason for the widespread use of fossil fuels?
Definition
fossil fuels are readily available and inexpensive
Term
what's a feature nuclear power plants & coalfired power plants share?
Definition
turbines and generators
Term
what's the main reason for the worldwide slowdown in the construction of power plants
Definition
the electricity from nuclear power plants is more expensive
Term
what's an example of the direct use of fossil fuels?
Definition
an oil-fired furnace
Term
what describes the process where nuclear plants use nuclear energy?
Definition
power plants use modern nuclear fission to split uranium atoms & release nuclear energy
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