The reason why the gravitational attraction of a black hole is so strong is because of its large mass and density. The more massive and dense an object is, the more gravity it has. A black hole...
gravity. Lots and lots of gravity. Basically, if the size of an object in space doubles in radius, then, the force of its gravity increases by a factor of 8, so gravity increase faster then the size...
any gravitational force is made by and object that has mass, which causes gravity. black hole's have a really great mass, taking in anything. a gravitational force is made by anything that has mass...