"Energy is never created or destroyed" is one way of stating the law of this "of energy"
The first law of thermodynamics may be stated 
in several ways : ... A particular consequence of the law of conservation of energy 
is that the total... [DOC] [TLE] Energy Tutorial Test - McGraw Hill Higher Education [PAR] Question #10: The law of conservation of energy is a statement that .... By 
definition, a joule is a newton of force acting through a distance of one meter and 
this is the unit obtained by ... 150 J Click below to see one way to solve this 
problem.