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chapter 17
| Question | Answer |
|---|---|
| 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 in which a fuel burns because it combines rapidly with oxygen |
| energy efficacy | an expression of how much of the energy put into the system actually does useful work |
| renewable energy | nearly always available somewhere on Earth's surface,or they are replaced in a relatively short time |
| nonrenewable energy | 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 | topically 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 |
| petrochemicals | chemicals compound that are derived from oil and used To make products |
| oil sands | deposits of moist sand and clay containing bitumen |
| oil shale | rock filled with mixture of hydrocarbon |
| methane hydrate | an icelike solid that consists of molecules of methane within a crystal network of water molecules |
| acid drainage | occurs when sulfide minerals in exposed rocks 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 these particles together in the nucleus |
| nuclear fission | the splitting of an atom nucleus into two smaller nuclei |
| nuclear reactor | generates electricity by controlled fission reactions |
| meltdown | the accidental melting of the uranium fuel rods inside the core of a nuclear reactor,causing the release of radiation |
| nuclear waste | a radioactive material left over from the production of energy and other processes |
| nuclear fusion | small nuclei of lightweight elements are forced together to form a heavier nucleus |
Created by:
edmersona