U5 Universe Test Review

Front

What does a redshift in light from a star indicate?

Back

The star is moving away from the Earth.

Front

What type of galaxy has spiral arms and a flat disk?

Back

Spiral galaxy.

Front

What does the Big Bang Theory explain?

Back

The universe formed from a huge explosion that sent all matter flying outward from a single point.

Front

What is the main category of our Sun?

Back

Main Sequence.

Front

What type of stars are known as Red Supergiants?

Back

High mass stars that have expanded and cooled.

Front

What is the significance of galaxies moving away from each other?

Back

It supports the Big Bang Theory, indicating the universe is expanding.

Front

What are the characteristics of a Main Sequence star?

Back

They are in a stable phase of hydrogen burning and make up the majority of stars.

Front

What is a quasar?

Back

An extremely luminous and active galactic nucleus powered by a supermassive black hole.

Front

What is the temperature of the universe in relation to the Big Bang?

Back

The universe is relatively the same temperature in all locations.

Front

What is the life cycle of a star?

Back

Stars form from gas and dust, go through stages like Main Sequence, and end as white dwarfs, neutron stars, or black holes.