Black Holes Quiz: questions and answers
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1. What is a black hole?
A region of spacetime exhibiting such strong gravitational effects that nothing can escape from it
2. What is the name of one of the theorems related to black holes?
No-hair theorem
3. Where is the Laser Interferometer Gravitational-Wave Observatory (LIGO) located?
United States
4. Who found the solution to the Einstein field equations?
Karl Schwarzchild
5. What is the name given to a location in spacetime where the gravitational field of a celestial body becomes infinite in a way that does not depend on the coordinate system?
Gravitational singularity
6. Who was the first to propose the idea of a body so massive that even light could not escape?
John Michell
7. Who first introduced the term black body?
Gustav Kirchhoff
8. According to a quantum field theory in curved spacetime, how many mutually entangled particles does a single emission of Hawking radiation involve?
2
9. How many solar masses in the supermassive black hole located at the core of our Milky Way have?
4.3 million
10. When did Roy Kerr found the exact solution for a rotating black hole?
1963