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As far as we know, black holes cannot collapse any further. However, if a star were to collapse and form a black hole, its mass would be the same.
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What happens to a mass when it is swallowed by a black hole?
The object swallowed by the black hole is destroyed; its mass is added to the mass of the black hole.
Can the mass of a black hole ever decrease?
It is generally believed that the mass of a black hole can indeed decrease, through the mechanism of Hawking radiation. A simplified view of this is that quantum fluctuations near the event horizon, influenced by gravity, can generate particle pairs, one of which can escape the vicinity of the black hole and thus carry away energy or mass. In effect this is a thermodynamic interaction with the universe as of black body radiation; the apparent temperature of the black hole being inversely proportional to the its mass. By this mechanism a black hole could 'evaporate', with the rate of evaporation increasing as the mass decreases. This does of course presume that the amount of radiation emitted (Hawking radiation is calculated to be quite weak) is not balanced by the rate at which matter or energy is being absorbed by the black hole.
How will the gravitation field decrease?
By losing mass (i.e. energy). For example, a black hole can lose some of its mass by means of so-called Hawking radiation.
Is an Intermediate-mass black hole a type of black hole?
Yes. Intermediate-mass blackhole is a medium size black hole. Scientists have found stellar black holes and supermassive black holes but there is no prove that Intermediate-mass black type of black holes exist. My opinion is that they do exist because when a black hole is becoming a black hole supermassiveblack hole it will need to go though this stage of intermediate-mass black hole.
If instead of the sun there was a black hole of the same mass in the center of the solar system would all the planets have the same orbits?
No. The sun is decreasing in mass (fusion) over time whereas a black hole would increase in mass over time (sucking up astroids, gas, etc). So over very long periods of time the sun's gravitational force will significantly decrease, and if it was a black hole it would increase. Increase/decrease in mass directly affects increase/decrease in gravitational force. Since gravitation (and motion) is what causes orbit, over long periods of times the planets would have very different orbits in the two scenarios (sun vs black hole).
How can the mass of a black hole can be measured?
The mass of a black hole can be measure by the effects of its gravity on surrounding objects.
Do Black holes suck in all Matter?
No; I am not in a black hole yet.A black hole, like any other object with mass, will attract objects that are near by.No; I am not in a black hole yet.A black hole, like any other object with mass, will attract objects that are near by.No; I am not in a black hole yet.A black hole, like any other object with mass, will attract objects that are near by.No; I am not in a black hole yet.A black hole, like any other object with mass, will attract objects that are near by.
How big do event horizons get?
Assuming you mean the event horizon of a black hole (there are other types as well), the diameter of a black hole as measured by its event horizon is directly proportional to its mass. The larger the mass, the larger the diameter. Thus, as a black hole's mass increases, it will get bigger. The only limitation is how much mass a black hole is able to incorporate from its surroundings.
What becomes of energy when it is sucked up into a black hole?
Such energy has a mass equivalent (m = e/c2). Any such mass falling into the balck hole will increase the mass of the black hole.
What has mass but no volume?
a black hole
What did society think about black holes before Stephen Hawking?
Stephen Hawking applied Quantum Mechanics to the mathematics of black holes, before this they had only been studied using General Relativity. With only General Relativity black holes could only form from the collapse of large stars, there was a minimum mass for a black hole, things only fell into a black hole causing its mass to always increase never decrease. With Quantum Mechanics added black holes could form early in the Big Bang before any stars existed, there was no minimum mass for a black hole, a black hole could emit particle radiation thus losing mass and the more mass it lost the faster it lost mass resulting in the black hole exploding in a flash of particle radiation and ceasing to exist.
Does the hole in a black hole expand the older the black hole gets?
No. If no matter enters a black hole it will actually slowly lose mass and shrink via Hawking radiation. A black hole will gain mass if matter fals into, which will cause the event horizon to grow.
