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physics property objects transferable fundamental interactionsconverted forms not created or destroyed joule SI

mechanical work metre forcenewton [1]

Work heatsecond law of thermodynamics

waste heatavailable energy

thermal energy

efficient energy use

environmentalnational security personal financial security savings energy hierarchy resource depletion

http://en.wikipedia.org/wiki/Physics

http://en.wikipedia.org/wiki/Physical_property

http://en.wikipedia.org/wiki/Physical_object

http://en.wikipedia.org/wiki/Energy_transfer

http://en.wikipedia.org/wiki/Fundamental_interaction

http://en.wikipedia.org/wiki/Energy_transformation

http://en.wikipedia.org/wiki/Forms_of_energy

http://en.wikipedia.org/wiki/Conservation_of_energy

http://en.wikipedia.org/wiki/Joule

http://en.wikipedia.org/wiki/SI

http://en.wikipedia.org/wiki/Mechanical_work

http://en.wikipedia.org/wiki/Metre

http://en.wikipedia.org/wiki/Force

http://en.wikipedia.org/wiki/Newton_(unit)

http://en.wikipedia.org/wiki/Energy

http://en.wikipedia.org/wiki/Work_(thermodynamics)

http://en.wikipedia.org/wiki/Heat

http://en.wikipedia.org/wiki/Second_law_of_thermodynamics

http://en.wikipedia.org/wiki/Waste_heat

http://en.wikipedia.org/wiki/Available_energy

http://en.wikipedia.org/wiki/Thermal_energy

http://en.wikipedia.org/wiki/Efficient_energy_use

http://en.wikipedia.org/wiki/Natural_environment

http://en.wikipedia.org/wiki/National_security

http://en.wikipedia.org/wiki/Personal_security

http://en.wikipedia.org/wiki/Savings

http://en.wikipedia.org/wiki/Energy_hierarchy

http://en.wikipedia.org/wiki/Resource_depletion