Hooke’s Law
The extension of a material (solid) is directly proportional to the applied force (load) up to the limit of proportionality.
Hooke’s Law equation
Force = spring constant x extension
F = kx
Extension
Increase in size of a material due to tension
Compression
A force that pushes on and decreases the size a material.
Spring constant
A property of a material that is a measure of its resistance to being compressed or stretched.
Limit of proportionality
the maximum extension (or strain) that an object can exhibit, which is still proportional to the load (or stress) applied
Elastic Limit
Maximum extension or compression that material can undergo and still return to its original dimensions when the force is removed
Elastic strain energy
The energy stored in an object when it is stretched.
How is elastic strain energy related to work?
It is equal to the work done to stretch the object before the elastic limit.
How can elastic strain energy be determined?
It can be determined from the area under a force-extension graph.
