If one abandons the notion of different FORMS or KINDS
of energy and instead thinks of different storage
MODES for the energy in a system, much clarity is
achieved for BEGINNING students. And then, dispensing
with WORK and ENERGY as different "things", one simply
discusses the mechanism for energy transfer into or
out of a SYSTEM - workING if the transfer mechanism is
mechanical (on the macro scale), heatING if the the
transfer mechanism is thermal. I think this (Modeling)
approach does a much better job of helping beginning
students learn the fundamental concepts. And you never
have to use the hated word "flow" to describe the
processes. John Barrere
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