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Chapter 15 vocab

TermDefinition
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 object's 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 particles in an object.
chemical energy the energy stored in chemical bonds
electrical energy the energy associated with electric charges.
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, cannot be replaced except over the course of millions of 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 surfance
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 efficiently.
Created by: emilybarnett
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