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20 Cards in this Set
- Front
- Back
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Energy |
the strength and vitality required for sustained physical or mental activity. |
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kinetic energy |
energy that a body possesses by virtue of being in motion. |
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potential energy |
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors. |
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mechanical energy |
the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object. |
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chemical energy |
energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction, often producing heat as a by-product (exothermic reaction). Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy. |
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thermal energy |
the internal energy of an object due to the kinetic energy of its atoms and/or molecules. The atoms and/or molecules of a hotter object have greater kinetic energy than those of a colder one, in the form of vibrational, rotational, or, in the case of a gas, translational motion. |
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electrical energy |
an electric charge that lets work be accomplished. An example of electrical energy is power from a plug outlet. |
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sound energy |
a form of energy that is associated with vibrations of matter. It is a type of mechanical wave which means it requires an object to travel through. This object includes air and water. Sound originates from the vibrations that result after an object applies a force to another object. |
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light energy |
how nature moves energy at an extremely rapid rate, and it makes up about 99% of the body's atoms and cells, and signal all body parts to carry out their respective tasks. An example of light energy is the movement of a radio signal. |
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nuclear energy |
the energy released during nuclear fission or fusion, especially when used to generate electricity. |
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power |
the ability to do something or act in a particular way, especially as a faculty or quality. |
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machine |
an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task. |
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energy conversion |
the process of changing one form of energy to another form of energy. In physics, the term energy describes the capacity to produce certain changes within any system, without regard to limitations in transformation imposed. |
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fossil fuel |
a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms |
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law of conservation of energy |
the law of conservation of energy states that the total energy of an isolated system remains constant—it is said to be conserved over time.Energy can neither be created nor destroyed; rather, it transforms from one form to another. |
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nonrenewable recource |
a resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption. Most fossil fuels, such as oil, natural gas and coal are considerednonrenewable resources in that their use is not sustainable because their formation takes billions of years. |
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renewable recource |
an organic naturalresource which can replenish to overcome usage and consumption, either through biological reproduction or other naturally reoccurring processes. Renewable resourcesare a part of Earth's natural environment and the largest components of its ecosphere. |
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thremal conductor |
the property of a material to conduct heat. It is evaluated primarily in terms of Fourier's Law for heat conduction. |
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thermal insulator |
the process of insulating against transmission of heat. or material of relatively low heat conductivity used to shield a volume against loss or entrance of heat by radiation, convection, or conduction. |
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thermal pollution |
the harmful release of heated liquid into a body of water or heat released into the air as a waste product of a business. |
