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chapter 15 vocab
Term | Definition |
---|---|
energy | is the ability to do work |
kinetic energy | the energy of motion |
potential energy | is energy that is stored as a result of position or shape |
gravitational potential energy | potential energy that depends upon an objects height |
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 energy of all the microscopic particles in an object |
chemical energy | the energy stored in chemical bonds |
electrical energy | the energy associated with electric charges |
electromagnetic energy | is a form of energy that travels through space in forms of waves |
nuclear energy | the energy stored in atomic nuclei |
energy conversion | the process of changing energy from one form to another |
non renewable energy resources | exist in limited quantities and once used cannot be replaced except over the course of millions of years |
fossil fuels | oil natural gas and coal |
renewable energy resourse | are 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 | is thermal energy beneath earths surface |
biomass energy | the chemical energy stored in living thigs |
hydrogen fuel cell | generates electricity by reacting hydrogen with oxogen |
energy conservation | finding ways to loose less energy or to use energy more effeciently |