Star Formation

What temperature does fusion begin?

• 10 thousand degrees celsius

• 10 million degrees celsius

• 10 billion degrees celsius

• 1 billion kelvin

Tags

NGSS.HS-ESS1-1

During the fusion process of a main sequence star, ______________ is turned into _____________.

• hydrogen; helium

• helium; hydrogen

• hydrogen; iron

• carbon; oxygen

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What factor determines the life cycle of a star?

• color

• mass

• temperature

• location in the galaxy

Tags

NGSS.HS-ESS1-1

Fusion at the core of a new star provides an outward force that does not balance gravity.

• True

• False

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Stars are formed from.....

• Giant clouds of dust and gas found in space.

• Carbon and Dioxides.

• The big bang.

• Meteors and latent comets.

This quantity is the quantity that is crucial for deciding what route the star’s life will go down?

• Temperature

• Mass

• Age

• Formation Speed

Tags

NGSS.HS-ESS1-1

______ must begin in the core of stars for them to be considered main sequence stars.

• carbon and/or iron fission depending on the star's mass

• fusion of deuterium isotopes

• helium fusion

• hydrogen fusion

Tags

NGSS.HS-ESS1-1

How a star's life will end directly depends on...

• the type of nebula that formed it.

• it mass.

• the galaxy it formed in.

• the original contents of its core.

Tags

NGSS.HS-ESS1-1

What is the primary force responsible for the initial collapse of a molecular cloud in star formation?

• A) Electromagnetic force

• B) Gravitational force

• C) Nuclear force

• D) Weak force

Tags

NGSS.HS-PS2-4

Which element is most abundant in the molecular clouds where stars form?

• A) Helium

• B) Carbon

• C) Hydrogen

• D) Oxygen