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chapter 15 vocab
Kara Hackman
Term | Definition |
---|---|
energy | the ability to do work |
kinetic energy | energy of motion |
potential energy | energy that is stored as a result of position or shape |
gravitational potential energy | energy that depends upon an objects height |
elastic potential energy | energy of an object that is stretched or compressed |
mechanical energy | energy associated with the motion and position of everyday objects |
thermal energy | the total 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 electrical charges |
electromagnetic energy | a form of energy that travels through space and forms waves |
nuclear energy | energy stored in atomic nuclei |
energy conversion | the process of changing energy from one form to another |
nonrenewable energy resources | exist in limited quantities and once used cannot be replaced |
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 from flowing water |
solar energy | sunlight that is converted into usable energy |
geothermal energy | thermal energy below earths surface |
biomass energy | the chemical energy stored in living things |
hydrogen fuel cell | generates electricity by reacting hydrogen with oxygen |
energy conservation | finding ways to use less energy or to use energy more efficiantly |