Test

CCI02.04.01.- Could the Earth be swallowed by a black hole?

PEDRO ÁLVAREZ JIMÉNEZ 5 preguntas

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Preguntas del test (5)

1The gravitational field of a black hole is so strong that _______ can escape from its event horizon.
1. AOnly a spacecraft with very powerful engines
2. BNothing, not even the light
3. COnly electrons
2Astronomers can observe black holes because.
1. AThe volume of space inside the event horizon emits light
2. BThey observe the gravitational effects of the black holes on the space around them
3. CThey are connected with space-time tunnels to Earth
3Where are black holes typically located?
1. ASuper-massive black holes sit at the center of the galaxy
2. BOutside galaxies, in the intergalactic space
3. CInside galaxies, but there are none in the Milky Way
4It is _______ that planet Earth will be destroyed by a black hole.
1. AImpossible
2. BCertain
3. CPossible, but extremely unlikely
5Black holes are fundamental components of the universe because.
1. AThey contributed to the formation and evolution of galaxies
2. BThey get rid of useless stars and planets
3. CThey are amusing objects for astronomers