Understanding the Effects of Black Holes on Mass and Gravity

In summary, a black hole does not cause an object's mass to decrease as it falls into it. Instead, the object's mass will add to the mass of the black hole, increasing its gravitational pull. However, in the case of Hawking radiation, the mass of the black hole can decrease through the conversion of positive energy to negative energy. This phenomenon is known as quantum mechanical explanation for Hawking radiation.
  • #1
Physik
24
0
I don't know much about the subject of BlackHoles, but could someone tell me if this is correct: "As a BlackHole sucks in an object the mass will either disappear or reduce significantly."

":" is a ratio

Object approaches Speed of Light : Positive Mass (or build up of mass as it approaches speed of light) = BlackHole's gravity (Slows object down) : Negative Mass (Mass is going away)
 
Last edited:
Astronomy news on Phys.org
  • #2
Anything falling into a black hole simply increases the mass of the black hole.
 
  • #3
No no, I'm asking if the object falling into the black hole will decrease in mass.

EDIT: or does the object just keep it's mass and fall into the black hole?
 
Last edited:
  • #4
Correct. No mass loss. The relativistic mass increases due to gravitational acceleration
 
  • #5
mathman said:
Anything falling into a black hole simply increases the mass of the black hole.
When a particle pair drop into black hole, the positive energy will turn into negative energy and vice-versa due to the strong gravity force of black hole. Thus, the negative energy drop into the black hole and decrease the energy of the black hole. According to E=mc^2, the mass of black hole will decrease, not increase. The mass of the particle drop into the black hole simply release into space through radiation. In another terms, it is something like recycle.
 
  • #6
That is a dog of a different color. The quantum mechanical explanation for Hawking radiation is what you are describing.
 

1. What is a black hole?

A black hole is a region in space where the gravitational pull is so strong that nothing, including light, can escape from it. This makes it invisible to the naked eye and difficult to study.

2. How is a black hole formed?

Black holes are formed when a massive star dies and its core collapses under its own gravity. This causes the remaining matter to be compressed into an infinitely small point known as a singularity, surrounded by an event horizon from which nothing can escape.

3. Can anything escape from a black hole?

No, once an object crosses the event horizon of a black hole, it is impossible for it to escape. This is due to the extreme gravitational force that pulls everything inwards towards the singularity.

4. How do we study black holes if they are invisible?

Scientists use indirect methods to study black holes, such as observing the effects of their gravity on surrounding matter or detecting the radiation emitted from the hot gas and dust falling into the black hole.

5. What is the significance of studying black holes?

Studying black holes can help us better understand the nature of gravity, the evolution of galaxies, and the origins of the universe. They also provide insights into extreme physical conditions that cannot be replicated on Earth.

Similar threads

  • Astronomy and Astrophysics
Replies
11
Views
277
  • Astronomy and Astrophysics
Replies
10
Views
502
  • Astronomy and Astrophysics
Replies
4
Views
1K
  • Astronomy and Astrophysics
Replies
11
Views
768
  • Astronomy and Astrophysics
Replies
10
Views
1K
  • Astronomy and Astrophysics
Replies
5
Views
1K
  • Astronomy and Astrophysics
Replies
6
Views
2K
  • Astronomy and Astrophysics
Replies
27
Views
3K
Replies
4
Views
2K
  • Astronomy and Astrophysics
Replies
2
Views
981
Back
Top