set 1
What is the boundary of a black hole called?
a) Singularity
b) Accretion disk
c) Event horizon
d) Supermassive
c) Event horizon
What do black holes do to space and time?
a) They make space and time faster
b) They bend and warp space and time
c) They destroy space and time
d) They have no effect on space and time
b) They bend and warp space and time
What is a black hole?
a) A large planet that glows in space
b) A region in space where gravity is so strong, not even light can escape
c) A bright star that shines the most in the galaxy
d) A large hole on the surface of a planet
b) A region in space where gravity is so strong, not even light can escape
Why can’t we see black holes directly?
a) They are covered by clouds of dust
b) They are too far away from Earth
c) They don’t emit light
d) They are hidden behind stars
c) They don’t emit light
What are stellar black holes?
a) Black holes formed when massive stars die and collapse
b) Black holes that form in the center of galaxies
c) Black holes that are brighter than other black holes
d) Black holes created by planets crashing into each other
a) Black holes formed when massive stars die and collapse
Where can you find a supermassive black hole?
a) At the center of large galaxies
b) On the edge of the universe
c) In between stars in the Milky Way
d) Inside the Earth’s core
a) At the center of large galaxies
When was the first black hole discovered?
a) In 1916
b) In 1971
c) In 1999
d) In 2016
b) In 1971
What are quasars?
a) Stars near a black hole
b) Jets of particles that come out of supermassive black holes
c) Disks of gas that fall into a black hole
d) Planets that orbit around black holes
b) Jets of particles that come out of supermassive black holes
Why are black holes important to study?
a) They can be used as energy sources
b) They are beautiful to look at
c) They help us understand the universe and inspire imagination
d) They are the brightest objects in space
c) They help us understand the universe and inspire imagination
How do scientists detect black holes?
a) By observing their effect on nearby matter
b) By looking through special telescopes
c) By measuring the heat they produce
d) By listening to sound waves in space
a) By observing their effect on nearby matter