Definition of Erg
n.
1.
(Physics)
The
unit
of
work
or
energy
in
the
C
.
G
.
S
.
system
,
being
the
amount
of
work
done
by
a
dyne
working
through
a
distance
of
one
centimeter
;
the
amount
of
energy
expended
in
moving
a
body
one
centimeter
against
a
force
of
one
dyne
(981
dynes
exert
the
same
force
as
a
one
gram
mass
in
the
earth
'
s
gravitational
field
).
One
foot
pound
is
equal
to
13
,
560
,
000
ergs
.
The
absolute
Joule
is
equivalent
to
10
7
ergs
,
which
are
equivalent
to
0
.
2389
gram-calories
at
15°
C
.
See
also
mechanical
equivalent
of
heat
under
equivalent
.
Related Words
energy
unit
,
heat
unit
,
J
,
joule
,
watt
second
,
work
unit
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