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 Haymarket Riot resonated in American life for years, and there is no doubt it set back the labor movement. The Knights of Labor had its influence plummet, and its membership dwindled. At the end of 1886, at the height of the public hysteria following the Haymarket Riot, a new labor organization, the American Federation of Labor was formed. And the A.F.L. eventually rose to the forefront of the American labor movement.