A black hole is more dense. In principle, the black hole exists all
at one point. So its volume is zero, and its density is infinite.
The mass remains the same, the star becomes more and more dense as the volume decreases
It can either become a neutron star or a black hole. If the star is between 8 and 15 solar masses, it will become an incredibly dense neutron star. If it is more than 15 solar masses, it will collapse and become an even denser black hole.
A black hole isn't a hole as such. It is an extremely dense dead star that attracts all matter into a tiny singularity that has a massive density.
A black hole originated as a star, that is, the star converted to a black hole.
A black hole does not create a star. A black hole is formed when a star dies.
A black hole has more mass than a neutron star, but if you are comparing volume it would depend on the mass of the black hole. A neutron star is estimated to be about 14 miles in diameter, which is larger than the event horizon of a black hole up to about 3.8 times the mass of the sun. A more massive black hole will be larger.
it will become infinitely densethan a point of a needle that means the mass compressed for all eternity n will not stop to compresswow i even cant imagine how dense n small will it go foreverwell it beyond our knowledge limit just dont try to think it a god who know it
When a star explodes in a supernova, its core can collapse into either a neutron star or a black hole, depending on the mass of the original star. For stars with masses less than about 3 times that of the Sun, the core collapses into a neutron star, which is an extremely dense and compact object. For more massive stars, the core collapses further into a singularity, forming a black hole.
A black hole in one sense can be considered the "inside out" end of a very massive star. When that star dies in a massive implosion of it's core, it becomes so dense that nothing - not even light - can escape it's gravitational pull (hence black holes cannot be seen, that's why they are called "Black Holes"). It started as a massive star, it ended as a black hole.
"Small but very dense" sounds like the description of a neutron star or "collapsed matter star". Theoretically, a black hole (the only thing more dense) has no physical size at all. So, "neutron star". If the neutron star is spinning rapidly, they are called "pulsars" for the radio-wave pulses that they generate.
A neutron star is already a dead star it can produce no more energy, although massively dense it will just continue to radiate its energy out into space until there is nothing left. There is an alternative ending for a Neutron Star and that is, if it was a part of a binary system or had enough mass collect on it could collapse further to create a Black Hole.
Yes. Black holes are unaffected by heat. The mass of a star may alter a black hole's trajectory through space, but the black hole would actually become more powerful (a larger, more intense gravity field) from the mass it would gain by consuming the star. Most likely, the star and black hole would orbit one another in inward spirals, with more and more of the star's matter being pulled off and into the black hole.