Life Cycle of Stars

What happens to a star when its hydrogen fuel is exhausted?

• It becomes a red giant

• It becomes a white dwarf or a neutron star/black hole

• It becomes a supernova

• It becomes a brown dwarf

Tags

NGSS.HS-ESS1-1

What does the lifetime of a star depend critically on?

• Its temperature

• Its mass

• Its distance from Earth

• Its brightness

Tags

NGSS.HS-ESS1-1

What are the two groups into which the possible endings of a star's life are divided?

• Small stars and large stars

• Young stars and old stars

• Low-mass stars and high-mass stars

• Bright stars and dim stars

At what mass is the division set between low-mass stars and high-mass stars?

• 5 solar masses

• 15 solar masses

• 10 solar masses

• 20 solar masses

What happens to the collapsing cloud due to gravity?

• It cools down.

• It remains the same.

• It heats up.

• It disappears.

What are the possible final stages of a star sculpted by gravity?

• Red giant, blue giant, or supernova.

• White dwarf, neutron star, or black hole.

• Planet, comet, or asteroid.

• Gas cloud, dust cloud, or nebula.

What was the Sun born out of?

• A black hole

• An interstellar cloud

• A comet

• A supernova remnant

How long will the Sun reside on the main sequence?

• 1 billion years

• 5 billion years

• 10 billion years

• 20 billion years

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What happens to the Sun's core when it is starved of fuel?

• It expands and cools.

• It shrinks and grows hotter.

• It remains the same.

• It explodes.

Tags

NGSS.HS-ESS1-1

What transformation does the Sun undergo as its outer surface expands and cools?

• It becomes a white dwarf.

• It becomes a black hole.

• It becomes a red giant.

• It becomes a neutron star.