Agujero negro

The video explains that black holes are regions where mass is so concentrated that not even light can escape their gravity. Although black holes are invisible, their presence is detected through the gravitational effects they have on nearby objects. Some black holes may be remnants of the Big Bang, while others form when large stars collapse.

What makes it impossible for light to escape from a black hole?

• The presence of dark matter

• The magnetic field

• The high temperature

• The immense gravitational pull

How can we detect the presence of a black hole if it cannot be seen directly?

• By measuring its temperature

• By observing its gravitational effects on nearby objects

• By detecting its magnetic field

• By listening to sound waves it emits

Which of the following is a possible origin of some black holes?

• The collision of two galaxies

• The remnants of the Big Bang

• The explosion of a supernova

• The fusion of two stars

What happens when a large star collapses?

• It turns into a white dwarf

• It forms a new galaxy

• It creates a black hole

• It becomes a neutron star

Which of the following is NOT a characteristic of a black hole?

• It has a strong gravitational pull

• It emits visible light

• It can form from collapsing stars

• It affects nearby objects gravitationally