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Mary Russell
Chapter 15 Vocab
Term | Definition |
---|---|
energy | the ability to do work |
kinetic energy | the energy an object has due to its motion |
potential energy | energy that is stored as a result of position or shape |
gravitational potential energy | potential energy that depends upon an objects height above a reference point |
elastic potential energy | the potential energy of an object that is stretched or compressed |
mechanical energy | the energy associated with the motion and position of everyday objects |
thermal energy | the total potential and kinetic energy of all the particle in the object |
chemical energy | the energy stored in chemical bonds |
electrical energy | the energy associated with electric changes |
electromagnetic energy | a form of energy consisting of changing electric and magnetic fields |
nuclear energy | the energy stored in atomic nuclei |
energy conversion | the process of changing energy from one form to another. |
nonrenewable energy resources | a source of energy that exists in limited quantities and once used it can not be replaced except over the course of a million years |
fossil fuels | rich deposits of hydrocarbon mixtures that formed from the remains of organisms |
hydroelectric energy | energy obtained from flowing water |
solar energy | sunlight is is converted into usable energy |
geothermal energy | thermal energy beneath Earths surface |
biomass energy | the chemical energy stored in living things |
hydrogen fuel cell | a cell that generates electricity from a controlled reaction between hydrogen and oxygen |
renewable energy resources | a source of energy that can be replaced in relativity short period of time |
energy conservation | the practice of finding ways to use less energy or use energy more sufficiently |