Life Cycles of Stars

How will the sun change as it moves from its Main Sequence stage to its white dwarf stage?

• It will get less luminous as a giant star and then reach peak luminosity as a white dwarf

• It will heat up as it becomes a giant star and cool off when it becomes a white dwarf

• It will cool off and turn back into a cloud of dust and gases

• it will increase in luminosity and become a giant star, and then decrease in luminosity when it becomes a white dwarf

Tags

NGSS.HS-ESS1-1

The sun is a low/medium mass star. What will be its final stage of life?

• a black hole

• a neutron star

• a nebula

• a white dwarf surrounded by a planetary nebula

Tags

NGSS.HS-ESS1-1

Which star in this graph is currently at the Sun's final predicted stage of development?

• 40 Eridani B

• Proxima centauri

• Betelgeuse

• Rigel

Tags

NGSS.HS-ESS1-1

According to the diagram, the life-cycle path followed by a star is determined by the star's initial

• mass and size

• temperature and origin

• luminosity and color

• luminosity and structure

Tags

NGSS.HS-ESS1-3

According to the diagram, a star like Earth's Sun will eventually

• explode in a supernova

• become a black hole

• change into a white dwarf

• become a neutron star

Which star is probably going to produce a supernova explosion?

• Bardnard's star because it is low mass and burning fuel slowly

• Betelgeuse because it is a supergiant star

• Procyon B because it is a white dwarf

• the Sun because it is a medium mass Main Sequence star

Tags

NGSS.HS-ESS1-3

• when gravity caused the center of the cloud to contract

• when gravity caused heavy dust particles to split apart

• by outgassing from the spinning interstellar cloud

• by outgassing from Earth's interior

Tags

NGSS.HS-ESS1-1

Which object forms by the contraction of a large cloud of cases, followed by nuclear fusion of hydrogen into helium?

• a comet

• a planet

• a star

• a moon

Tags

NGSS.HS-ESS1-1

During what stage of development does the Sun have a relatively cool surface temperature and the highest luminosity?

• protostar

• main sequence

• red giant

• white dwarf

Compared to the luminosity and surface temperature of red main sequence stars, blue supergiants are

• less luminous and have a lower surface temperature

• less luminous and have a higher surface temperature

• more luminous and have a lower surface temperature

• more luminous and have a higher surface temperature

Tags

NGSS.HS-ESS1-3