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Ch.17

TermDefinition
Energy The ability to do work or cause a change.
kinetic energy the energy that an object has due to its motion
potential energy energy that an object has because of its position or shape.
combustion the process of which a fuel burns because it combines rapidly with oxygen.
energy efficiency is an expression of how much of the energy put into a system actually does useful work.
renewable energy energy that's nearly always available somewhere on Earth's surface, or replaced in a relatively short time.
nonrenewable energy energy that cannot be replaced.
electricity energy made available by the flow of an electric charge.
strip mining the extraction of a mineral by removing a strip of the layers of soil and rock on top of the mineral deposit.
subsurface mining the practice of digging shafts deep into the ground to find and remove a mineral.
petroleum a dark, liquid fossil fuel made up mostly of hydrocarbons.
petrochemical chemical compounds that are derived from oil and are used to make products.
oil sands deposits of moist sand and clay containing bitumen.
oil shale Rock filled with a mixture of hydrocarbons.
methane hydrate an ice-like solid that consists of molecules of methane within a crystal network of water molecules.
acid drainage occurs when sulfide minerals in exposed rock surfaces react with oxygen and rainwater to produce sulfuric acid.
energy conservation the practice of reducing energy use to meet those goals
nuclear energy the energy that holds the particles together in a nucleus
nuclear fission the splitting of an atom's nucleus into two smaller nuclei.
nuclear reactor generates electricity by controlled fission reactions
meltdown when a large amount of thermal energy and radiation is released as a result of an uncontrolled chain reaction in a nuclear power reactor.
nuclear waste radioactive material left over from the production of energy and other processes.
nuclear fusion the process by which two light atomic nuclei combine to form a single heavier one while releasing large amounts of energy.
Created by: Grace0
 

 



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