Tensile force
Tension - Tension is when something is in the state of being stretched or bent.
Torsion - Torsion is a turning or twisting force.
Stress and release - Stress and release is the relationship between applying a force and easing/lessening a force.
Equilibrium - Equilibrium is a stable state. It is usually characterized by the cancellation of all forces by equal opposing forces. This can be similar to balance in that the forces are “balanced.”
Tension:
![](/foundations/lib/exe/fetch.php?media=tension.gif)
Torsion:
![](/foundations/lib/exe/fetch.php?media=torsion.gif)
Stress and Release (of tension):
![](/foundations/lib/exe/fetch.php?media=stress-release.gif)
Equilibrium: