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Energy

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by

Kristin Wheeler

on 27 February 2012

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Transcript of Energy

Energy Transformations and Energy Conservation Energy What is it? The ability to do work
or cause change Energy exists in two states Kinetic Energy Potential Energy The energy an object has
due to its motion Stored energy that results from the shape or position of an object Gravitational Potential
Energy Elastic Potential
Energy energy related to an
object's height

equal to Weight x height associated wtih objects
that can be stretched or
compressed Forms of Energy Thermal
Electrical
Chemical Nuclear
Electromagnetic
Sound
Mechanical Mechanical Energy The form of energy associated
with the motion and position of
an object. Thermal Energy The total potential and kinetic
energy of the particles in an
object Electrical Energy Chemical Energy Potential energy stored in the
chemical bonds between atoms
in a substance Nuclear Energy Electromagnetic Energy Energy that travels in waves,
such as light and other forms
of radiation Sound Energy Form of energy associated with
the vibration of air particles Energy Transformations a change from one form of
energy to another Necessary when one form of
energy is desired, but another
form is available Transformations between
potential energy and
kinetic energy Energy skate park http://phet.colorado.edu/en/simulation/energy-skate-park Law of Conservation of Energy Energy cannot be created or
destroyed

It can be converted! Chemical to Mechanical Mechanical to Sound Chemical to Thermal Electrical to Thermal Nuclear to Electromagnetic Electromagnetic to Electrical Mechanical to Thermal Multiple transformations Nuclear to
Electromagnetic Chemical Mechanical Energy
efficiency
Nuclear to
Electromagnetic Chemical Mechanical nuclear to
electromagnetic electromagnetic to
electrical electrical to
electromagnetic
and ... ? The potential and kinetic
energy of charged particles A type of potential energy stored in the nucleus of an
atom. The greater the mass of the nucleus, the greater the nuclear energy. Electrical to Mechanical
Full transcript