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Chapter 15 Vocab.
Chapter 15 Vocab words and definitions
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 or an object that is stretched or compressed |
mechanical energy | the energy associated with the motion and position or everyday objects |
thermal energy | the total potential and kinetic energy of all the particles in an object |
chemical energy | the energy stored in chemical bonds |
electrical energy | the energy associated with electrical bonds |
electromagnetic energy | a form of energy consisting of changing electric and magnetic feilds |
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, cannot be replaced except over the course of a million years |
fossil fuels | rich deposits of hydrocarbon mixtures that formed from the remains of organisms |
renewable energy resources | a source of energy 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 beneath earth's 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 |
energy conservation | the practice of finding ways to use less energy or to use energy more effiecntly |