Star Life Cycle Quiz incomplete

What is the temperature most of the universe is?

• 2.73 K

• 273.15°C

• 0 K

• 459.67°F

What determines a star's life cycle?

• Mass

• Temperature

• Age

• Size

How long do stars like our Sun live?

• 100 years

• 1 million years

• 10 billion years

• 1 year

How long do stars that are 25 to 50 times the mass of the Sun live?

• A few million years

• 10 billion years

• 100 years

• 1 year

Where are stars formed?

• Nebulae

• Black Holes

• Planets

• Galaxies

What happens when temperatures reach 10 million K?

• The star expands

• The star dies

• The star cools down

• Nuclear fusion begins

What is the longest stage of a star?

• Main Sequence Stage

• Protostar Stage

• Red Giant Stage

• Burnout and Death

What happens when a giant star loses its outer layers of gas?

• It becomes a black hole

• It becomes a neutron star

• It becomes a white dwarf

• It becomes a planetary nebula

What is left when only the hot, dense core of a star like our sun remains?

• White Dwarf

• Black Hole

• Black Dwarf

• Neutron Star

What happens when a star's remaining mass is between 1.5 to 3 times the mass of the Sun AFTER it is in a red giant/supergiant stage?

• It becomes a white dwarf

• It becomes a black hole

• It becomes a neutron star