Universe Test Review

Front

What is the hottest stage of a star's life cycle?

Back

White Dwarf

Front

What determines the life cycle of a star when it is originally formed?

Back

Mass

Front

Which star is known to be brighter than the sun?

Back

Aldebaran

Front

What happens to stars as we move to the left on the Hertzsprung-Russell diagram?

Back

Stars get hotter.

Front

What type of star is categorized as having an average mass, and what is its next phase?

Back

Main sequence star; red giant star.

Front

What is the main sequence phase in a star's life cycle?

Back

The phase where a star fuses hydrogen into helium in its core.

Front

What is a red giant star?

Back

A late stage in a star's life cycle where it expands and cools after exhausting hydrogen in its core.

Front

What is the significance of a star's mass in determining its life cycle?

Back

A star's mass influences its temperature, luminosity, and the duration of its life cycle.

Front

What is the Hertzsprung-Russell diagram used for?

Back

It is used to classify stars based on their luminosity, temperature, and evolutionary stage.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a low to medium mass star after it has exhausted its nuclear fuel.