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Questions and Answers
What is the primary characteristic of a black hole?
What is the primary characteristic of a black hole?
- A region of spacetime where gravity is so strong that nothing can escape (correct)
- A region of spacetime with zero gravity
- A region of spacetime where only light can escape
- A region of spacetime where time moves faster than normal
According to general relativity, what is necessary to form a black hole?
According to general relativity, what is necessary to form a black hole?
- A object with a large magnetic field
- A massive object with a low density
- A sufficiently compact mass (correct)
- A object with a high velocity
What is the fate of light that enters a black hole?
What is the fate of light that enters a black hole?
- It is trapped in an orbit around the black hole
- It is absorbed by the black hole (correct)
- It is reflected back into space
- It escapes with a longer wavelength
What theory predicts the formation of black holes?
What theory predicts the formation of black holes?
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What can escape from a black hole?
What can escape from a black hole?
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Study Notes
Black Holes
- A black hole is a region of spacetime with an extremely strong gravitational pull.
- The gravity is so strong that nothing, including light and other electromagnetic waves, can escape once it gets too close.
- According to Einstein's theory of general relativity, a compact mass can warp spacetime to create a black hole.
- The mass must be sufficiently compact to form a black hole.
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Description
Learn about black holes, a region of spacetime with extreme gravity, and how Einstein's theory of general relativity explains their formation.
