Unit Review: Rediscovering the Universe

What type of galaxy is this?

• barred-spiral galaxy

• spiral galaxy

• elliptical galaxy

• irregular galaxy

Which model of galaxy formation is most widely accepted today?

• hierarchical model

• lenticular model

• monolithic collapse model

• top down model

What do we call an empty region in space?

• a void

• a black hole

• dark matter

• the big freeze

Reorder how the universe formed according to the Big Bang Theory.

• formation of stars and galaxies

• origin of cosmic microwave background radiation

• inflation of a tiny point

• formation of hydrogen and helium

• formation of electrons, protons, and neutrons

Tags

NGSS.HS-ESS1-2

What is sometimes at the center of galaxies?

• a void

• dark matter

• a white dwarf

• a supermassive black hole

What type of galaxy is this?

• barred-spiral galaxy

• spiral galaxy

• lenticular galaxy

• irregular galaxy

Which of the following will most likely NOT occur at the end of the universe?

• black holes will consume all matter

• the universe will contract under the force of gravity

• stars will burn out

• the universe will get colder

Who initially identified four main types of galaxies?

• Tombaugh

• Galileo

• Kepler

• Hubble

Which type of galaxy is disk-shaped with a bulge at the center?

• elliptical galaxy

• lenticular galaxy

• spiral galaxy

• barred-spiral galaxy

The fate of the universe is often called

• the Big Implosion

• the Big Contraction

• the Big Freeze

• the Big Bang

Tags

NGSS.HS-ESS1-2