Stretching Flashcards
1
Q
define extension
A
the extended length - the original length
2
Q
define Hooke’s law
A
the extension is directly proportional to the applied force up to the limit of proportionality
3
Q
what is the gradient in an extension/force graph
A
spring constant
4
Q
define the limit of proportionality
A
the place where F = kL breaks down, graph is no longer a straight line
5
Q
define the elastic limit
A
the place where the object does not return to its original form/length when the force is removed
6
Q
what is the gradient on a stress/strain graph
A
the young’s modulus
7
Q
what is the energy stored in a spring equal to
A
the work done stretching it
8
Q
what is work done here?
A
W = 1/2(F^2/k)
