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WorksheetsBlack holes
Total questions: 11
Worksheet time: 7mins
What are black holes?
shortcuts through space-time.
a region of space having a gravitational field so intense that no matter or radiation can escape.
a hypothetical region of spacetime and singularity that cannot be entered from the outside, although energy-matter, light and information can escape from it.
What are black holes made of?
hydrogen, with some helium and small amounts of other elements.
dark matter, and dark energy.
They're huge concentrations of matter packed into very tiny spaces.
What is the black hole "Sagittarius A*" located?
The center of the universe.
In outer solar system.
in another universe.
draw what you think a black hole looks like
the biggest black hole in our universe is
Gaia-BH1
Sagittarius A*
Black holes are (a)
When an object reaches the event horizon of a black hole........
matter will be torn apart into its smallest subatomic components and eventually be squeezed into the singularity
within which an observer is forced to rotate with the black hole, and cannot remain stationary with respect to the rest of the Universe.
With sufficient mass, gravitational attraction within the matter itself overcomes all other forces and matter begins to collapse.
what happens when an object reaches the singularity of a black hole
matter will be torn apart into its smallest subatomic components and eventually be squeezed.
Outside the horizon of the black hole is a region called the ergosphere, where space is dragged around so fast that nothing can remain at rest there
With sufficient mass, gravitational attraction within the matter itself overcomes all other forces and matter begins to collapse.
what happens when an object reaches the ergosphere of a black hole
The balance between the force of gravity directed in and thermal pressure directed out.
space is dragged around so fast that nothing can remain at rest there.
Once inside the black hole's event horizon, matter will be torn apart into its smallest subatomic components and eventually be squeezed.
how fast does the fastest black hole rotate
63 million mph
45 million mph
78 million mph
how does a black hole form
gas-rich debris disk that surrounds a young star. A core produced by collisions among asteroids and comets provides a seed, and when this core reaches sufficient mass, its gravitational pull rapidly attracts gas from the disk to form the planet.
grains of dust smaller than the width of a human hair.
form in large clouds of gas and dust called molecular clouds.
when the mass of an object, like a star, suddenly collapses down to a tiny volume.
