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Chapter 15 Vocab
Term | Definition |
---|---|
energy | the ability to do work |
kinetic energy | the energy of motion |
potential energy | energy stored as a result of position or shape |
gravitational potential energy | potential energy that depends on height |
elastic potential energy | the potential energy of an object compressed or strecthed |
mechanical energy | energy associated with the motion and position of everyday objects |
thermal energy | the potential and kinetic energy of all the microscopic particles in an object |
chemical energy | the energy stored in chemical bonds |
electrical energy | energy associated with electric charges |
electromagnetic energy | a form of energy that travels through space in the form of waves |
nuclear energy | energy stored in an atomic nuclei |
energy conversion | the process of energy changing from one form to another |
nonrenewable energy resources | energy resources that once depleted cant be restored |
fossil fuels | oil, natural gas,and coal |
renewable energy resources | resources that can be replaced in a relatively short period of time |
hydroelectric energy | energy obtained through flowing water |
solar energy | sunlight converted into energy |
geothermic energy | thermal energy beneath earths surface |
biomass energy | energy stored in living things |
hydrogen fuel cell | generates electricity by reacting hydrogen with oxygen |
energy conservation | finding ways to use less energy or more efficiently |