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.
Knights of Labor. Summary and Definition of Knights of Labor. Definition and Summary: The Knights of Labor was an important American labor organization that was established in 1869 and led by Uriah S. Stephens. The Knights of Labor was originally founded as a secret organization of tailors in Philadelphia.