Characteristics of the Universe Test Review

Front

What is a characteristic of white dwarfs on the H-R diagram?

Back

Hot but not very luminous.

Front

Which type of galaxy is typically smaller and contains many bright, young stars?

Back

Irregular.

Front

What are the two outcomes of a massive star's life cycle after a supernova?

Back

A black hole and a neutron star.

Front

What type of galaxy is characterized by a lack of defined structure and often contains young stars?

Back

Irregular Galaxy.

Front

What does redshift indicate in astronomy?

Back

It indicates a star is moving away from us.

Front

What is the H-R diagram used for?

Back

To classify stars based on their luminosity and temperature.

Front

What is a black hole?

Back

A region of space where the gravitational pull is so strong that nothing, not even light, can escape.

Front

What is a neutron star?

Back

A dense stellar remnant composed mostly of neutrons, formed after a supernova.

Front

What are spiral galaxies known for?

Back

Their distinct spiral arms and a mix of young and old stars.

Front

What is the main difference between elliptical and spiral galaxies?

Back

Elliptical galaxies are more rounded and contain older stars, while spiral galaxies have a flat disk with spiral arms.