Life Cycle of Stars

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

• Red Giant

• Protostar

• White Dwarf

• Supernova

Which of the following best describes the main sequence phase of a star?

• A phase where the star is expanding and cooling

• A phase where the star is stable and fusing hydrogen into helium

• A phase where the star collapses into a black hole

• A phase where the star is shedding its outer layers

What determines whether a star will become a black hole or a neutron star at the end of its life cycle?

• The star's temperature

• The star's mass

• The star's age

• The star's distance from Earth

Tags

NGSS.HS-ESS1-1

Which of the following is a characteristic of a high-mass star's life cycle?

• It ends as a white dwarf

• It undergoes a supernova explosion

• It remains in the main sequence for billions of years

• It forms a planetary nebula

How does a low-mass star typically end its life cycle?

• By becoming a black hole

• By becoming a neutron star

• By becoming a white dwarf

• By undergoing a supernova

What is a pulsar?

• A rapidly rotating neutron star emitting beams of radiation

• A type of black hole

• A star in the main sequence phase

• A type of red giant

Which of the following processes occurs in the core of a star during the main sequence phase?

• Helium fusion into carbon

• Hydrogen fusion into helium

• Carbon fusion into oxygen

• Iron fusion into heavier elements

Tags

NGSS.HS-ESS1-1

What is the Chandrasekhar limit?

• The maximum mass of a white dwarf

• The minimum mass required for a star to become a black hole

• The maximum temperature a star can reach

• The minimum size of a neutron star

Which of the following is true about the life cycle of a high-mass star compared to a low-mass star?

• High-mass stars have longer lifespans

• High-mass stars do not undergo supernovae

• High-mass stars can form black holes

• High-mass stars end as white dwarfs

What is the primary factor that influences the evolution and lifespan of a star?

• The star's color

• The star's mass

• The star's location in the galaxy

• The star's magnetic field

Tags

NGSS.HS-ESS1-1