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.
Because of such fierce opposition from big business, much of the  later labor union activity was carried on in secret. Such was the  case in the organization of the first re â¦ latively permanent national  labor union, the Knights of Labor, organized in 1869 in  Philadelphia.