The black hole's mass would increase by an insignificant amount.
Nothing No One Can Hit A Planet
That would depend on the mass of the black hole, and how close it came. A black hole the size of a star, a few light-years distance, would not be any more dangerous than a star at the same distance.
If a dwarf star crashed into a planet,the planet would likely explode.
At that distance, there would be no planet - just vaporised gasses.
If the earth entered a black hole, the first portion that enters would begin to stretch until forces compress and tear apart the planet. The Plant Earth would be reduced to its particles (atoms).
we would all die.
A large gas planet like Saturn would probably not last as an inner planet - the sun would probably pull Saturn into it and destroy it.
The object would crash into the planet.
the planet will shake
It's days would be shorter
We all die
Every living thing on the planet would die.