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Physics
General Physics
Moments
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Created by
Robin Jack
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Cards (4)
A
moment
is the measure of the turning effect on a body and is defined as:
M
o
m
e
n
t
(
N
m
)
=
Moment\ \left(Nm\right)\ =
M
o
m
e
n
t
(
N
m
)
=
F
o
r
c
e
(
N
)
x
P
e
r
p
e
n
d
i
c
u
l
a
r
d
i
s
tan
c
e
f
r
o
m
P
i
v
o
t
(
m
)
\ Force\ \left(N\right)\ x\ Perpendicular\ dis\tan ce\ from\ Pivot\ \left(m\right)
F
orce
(
N
)
x
P
er
p
e
n
d
i
c
u
l
a
r
d
i
s
tan
ce
f
ro
m
P
i
v
o
t
(
m
)
Due to the moment, increasing force or distance from the pivot increases the
moment
of a force
Levers
are force magnifiers because increasing force or distance from the pivot increases the moment of a force
In equilibrium, clockwise moment = anticlockwise moment there is no
resultant force
acting on the body.