WorksheetsCrash Course Galaxies
Total questions: 10
Worksheet time: 5mins
What are the two competing ideas about the Universe mentioned in the video?
That the Milky Way is the only galaxy
That the Milky Way is just one of many galaxies
Both a and b
None of the above
Who were the two astronomers debating the size of the Universe?
Edwin Hubble and Milton Humason
Harlow Shapley and Heber Curtis
Albert Einstein and Isaac Newton
Stephen Hawking and Carl Sagan
What type of stars were crucial in determining the distance to the Andromeda Galaxy?
Red giants
Pulsating stars
White dwarfs
Supernovae
How many major types of galaxies are mentioned in the video?
Two
Three
Four
Five
What is a characteristic of elliptical galaxies?
They are flat and spiral in shape
They have no overall structure and are populated with older stars
They are always small
They are mostly made of gas and dust
What happens when galaxies collide?
They merge and create new stars
They explode
They become smaller
They break apart into smaller galaxies
Which type of galaxy is known for its strange and distorted shapes?
Elliptical galaxies
Spiral galaxies
Peculiar galaxies
Irregular galaxies
How do irregular galaxies often appear?
They are perfectly shaped
They are chaotic and shapeless
They are always large
They are always bright
What is the Tarantula Nebula known for?
Being the largest galaxy
Being an active star-forming region
Being a black hole
Having no stars
What does the video suggest about our understanding of the Universe?
It is complete and perfect
It is constantly evolving as we learn more
It is mainly focused on the Milky Way
It has remained unchanged for centuries
