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it gets this by having a large amount of matter in a vary small amount of volume
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∙ 12y ago
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How do tides affect black holes?
Given that tides are caused by gravity, and that black holes are a major SOURCE of gravity, it isn't clear that black holes would be affected at all by other gravitational sources. Of course, we can know nothing at all about whatever is inside the event horizon of a black hole.
What can you say about black holes?
Black holes were stars that were so massive that they collapsed on itself. The gravity in black holes is infinite and more you get closer to it, more time gets slower. Black holes suck all matter that is too close. Even light can't escape Black holes.
What is so small and massive that the gravity does not even let light escape?
Black holes - and not all are small.
What has the most gravity in the universe?
Perhaps the most massive of all "singular" objects in the universe is a super-massive black hole.Certainly a galaxy that has many black holes in it and billions and billions of stars has more mass and more gravity than any star or smaller galaxy. But as regards "point objects" in our uinverse. The most massive black holes, the so-called super-massive black holes, are the ones with the most gravity.
Can black holes be seen?
No. The gravity of a black hole is so extreme that nothing can escape, not even light. Since we humans see things based on the light that bounces off of them or radiates away from them, black holes are invisible. In fact, the only way we can detect a black hole at all is indirectly, based on its gravity.
Is there a place where gravity is so strong that not even light can escape?
We call these "black holes" because the gravity is so strong that it even pulls in all of the light.
How are gravity and black holes related?
Black holes are the cause of gravity... Black holes are created when a supernova condenses, creating a black hole. It condenses because gravity has won the battle between the star's core. So basically, gravity fuels a Black hole.
Are black holes bottomless?
First, so called black holes are not holes at all. They are collapsed stars of extreme density - think of it as a tiny planet with extremely powerful gravity. Second of all, they aren't exactly proven to exist at all - we merely assume that what we discovered are black holes, given their powerful gravity and lack of light in the area. They could be alien spacecrafts, or portals to a parallel universe, as far as science knows. Anything is possible in deep space. Since black holes aren't exactly holes, they don't have a "bottom"Second of all, they are not black. Their gravity is so powerful, that not even light can escape it. By such, they pull all the light in the area inside of them, thereby making themselves seem black. The event horizon is the point of no return - when something goes past it, it's not possible for it to leave the gravitational pull of a black hole unless it went faster than light - which, as Einstein claimed, is impossible.No one knows what would happen to anything that would be pulled inside a black hole (if they do, in fact, exist). Most probably the object would be crushed with gravity.
Why black hole have gravitational pull?
You bet they do! Black holes can have only three properties:mass - this creates the gravitational pull and is a property of every black holespin - this will likely be a property of any stellar black hole as all stars spincharge - this will be a rare property as it will attract opposite charge and soon be canceled
Do all-stars tern into blackholes when they die?
Not all stars do but stars can turn into black holes. Small ones turn in to a black dwarf star when it dies. Medium ones turn in to a neutron then in to a red giant star and then to white dwarf star Large size stars becomes a blackhole..........
Can the continued expansion of black holes lead to the end of the universe?
Expanding black holes don't mean the end of the universe. It is true that we don't know enough about the universe to be able to see an "end" in sight. But right now the universe is expanding, and the immense gravity of even black holes (and other matter) doesn't seem to be slowing it up at all.
Do black holes use gravity?
Yes. Black holes suck things inside. The only way to suck these things inside is by massive form of gravity. Black holes can suck in as little as a small chunk of rock, or as big as a planet. Black holes don't "use" gravity, they are a side effect of it. To create a black hole requires a force that can grow infinitely: of the strong nuclear, weak nuclear, electromagnetic and gravity forces, only gravity is infinite in it's strength that is it is based on the masses and distances of the objects involved, it has no limit. A black hole is generated when enough mass joins together and the force of gravity generated is so strong that light can't escape it (at event horizon and lower.) In most cases for the mass to get that heavy, gravity has to bring them together in the first place (every so often high speed collisions will join masses, but it rare.) It's almost a snake biting it's tail: gravity pulls the parts together, the parts coming together increases gravity, that gravity pulls more parts .......
