Action (physics)
In physics, action is an attribute of the dynamics of a physical system. It is a mathematical functional which takes the trajectory, also called path or history, of the system as its argument and has a real number as its result. Generally, the action takes different values for different paths. Action has the dimensions of •, and its SI unit is joule•second. This is the same units as angular momentum.
Read more about Action (physics): Introduction, History, Mathematical Definition, Euler–Lagrange Equations For The Action Integral
Famous quotes containing the word action:
“You are, I am sure, aware that genuine popular support in the United States is required to carry out any Government policy, foreign or domestic. The American people make up their own minds and no governmental action can change it.”
—Franklin D. Roosevelt (1882–1945)