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Physical Science Chapter 15
Energy and Its Forms
21
Science
9th Grade
05/20/2014

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Term
Energy
Definition
the ability to do work
Term
gravitational potential energy
Definition
energy that depends upon an object's height
Term
elastic potential energy
Definition
the potential energy of an object that is stretched or compressed
Term
mechanical energy
Definition
the energy associated with the motion and position of every day objects
Term
thermal energy
Definition
the total potential and kinetic energy of all the microscopic particles in an object
Term
chemical energy
Definition
the energy stored in chemical bonds
Term
electrical energy
Definition
the energy associated with electric charges
Term
electromagnetic (radiant) energy
Definition
a form of energy that travels through space in the form of waves
Term
nuclear energy
Definition
the energy stored in atomic nuclei
Term
kinetic energy
Definition
the energy of motion
Term
potential energy
Definition
energy that is stored as a result of position or shape
Term
energy conversion
Definition
the process of changing energy from one form to another
Term
nonrenewable energy resources
Definition
exist in limited quantities and, once used, cannot be replaced except over the course of millions of years
Term
fossil fuels
Definition
energy sources formed underground from the remains of once living organisms
Term
renewable energy resource
Definition
resources that can be replaced in a relatively short period of time
Term
hydroelectric energy
Definition
energy obtained from flowing water
Term
solar energy
Definition
sunlight that is converted into usable energy
Term
geothermal energy
Definition
thermal energy beneath the Earth's surface
Term
biomass energy
Definition
the chemical energy stored in living things
Term
hydrogen fuel cell
Definition
generates electricity by reacting hydrogen with oxygen
Term
energy conservation
Definition
finding ways to use less energy or to use energy more efficiently
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