Astronomy- Stars review

Front

What causes clouds of dust and gas to form a protostar?

Back

Gravitational attraction is the force that causes clouds of dust and gas to collapse and form a protostar.

Front

What field uses the zodiac to predict the future or describe personalities?

Back

Astrology is the field that uses zodiac symbols to predict the future and describe personalities.

Front

What is the term for the brilliant explosion that massive stars undergo at the end of their life cycle?

Back

A supernova is the explosive end of a massive star's life cycle.

Front

Describe the relationship between the variables in the main sequence of the HR diagram.

Back

The relationship is a direct relationship, where the temperature and luminosity of stars increase together.

Front

Which main-sequence stars are the least massive?

Back

Red stars are the least massive among main-sequence stars.

Front

What is a protostar?

Back

A protostar is an early stage in the formation of a star, where dust and gas are collapsing under gravity.

Front

What is the HR diagram?

Back

The HR diagram (Hertzsprung-Russell diagram) is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion that occurs at the end of a massive star's life cycle.

Tags

NGSS.HS-ESS1-3

Front

What are the main types of stars in the HR diagram?

Back

The main types of stars in the HR diagram include main-sequence stars, giants, supergiants, and white dwarfs.

Front

What is the significance of the main sequence in stellar evolution?

Back

The main sequence is the phase in a star's life where it fuses hydrogen into helium in its core, representing a stable period.

Tags

NGSS.HS-ESS1-1