A black hole is an area where gravity is so strong that nothing can escape it, not even light. Blackholes are the remnants of supernovas. Wormholes are theoretical, but what they are believed to be is a link from one point in space to another. It would be useful for traveling vast distances in space at a respectable speed. To sustain a wormhole, however would require astronomical amounts of energy that we can’t harness yet. So to answer your second question, no they are not the same thing.