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Paper 2
Forces
Forces and elasticity
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Cards (5)
Explain the relationship between the force applied and the extension of an elastic object.
The extension is
directly proportional
to the force applied, provided that the
limit
of
proportionality
is not exceeded
what is meant by an inelastic (plastic) deformation?
a deformation which results in the object being
permanently stretched
the object doesn’t return to its
original
shape when the force is
removed
state the equation relating force, spring constant and extension. give appropriate units
force
=
spring constant
x
extension
force
(
N
),
spring constant
(
N/m
),
extension
(
m
)
what type of energy is stored in a spring when it is stretched?
elastic potential
energy
what can extension be replaced with in the equation for spring force?
compression