An object has kinetic energy when itâs in motion. The amount of kinetic energy an object has depends on its mass and speed. Potential energy, on the other hand, is a stored energy when an object is at rest. It describes how much work the object could do if set into motion. Itâs an energy we can generally control. When an object is set into motion, its potential energy transforms into kinetic energy.
The Knights of Labor, the first national industrial union in the United States, was founded in Philadelphia on December 9, 1869, by Uriah Stephens (1821-82) and eight other Philadelphia garment cutters.
The American Federation of Labor (AFL) was a national federation of labor unions in the United States.It was founded in Columbus, Ohio, in May 1886 by an alliance of craft unions disaffected from the Knights of Labor, a national labor association.articularly during the years of World War I, American unions were given considerable government protection and cooperation between capital and labor was actively sought as the best means of rationalizing and increasing American production on behalf of the war effort.