Quiz on Stellar Equilibrium and Life Cycle

What is the primary force that pulls the gas inward in a star?

• Electromagnetic force

• Gravity

• Magnetic force

• Nuclear fusion

Tags

NGSS.HS-PS2-4

What process releases a lot of energy in the core of a star?

• Nuclear fission

• Nuclear fusion

• Magnetic resonance

• Chemical reaction

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What happens when the core of a star gets too hot?

• The star becomes a black hole

• The star becomes a neutron star

• The star stops nuclear fusion

• The forces pushing out become stronger than gravity

What is the phase called when a star like the Sun becomes puffy and red?

• Supernova

• Black hole

• Red giant

• White dwarf

What is the final stage of a star like the Sun after it becomes a Red Giant?

• Supernova

• White dwarf

• Neutron star

What is the process called when a massive star explodes?

• Neutron star

• Red giant

• White dwarf

• Supernova

More energy is needed to fuse _______ than what is released, causing the star to collapse.

• Helium

• Iron

• Hydrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is formed when the core of an exploded star is so massive that the forces cannot balance gravity?

• Black hole

• White dwarf

• Red giant

After a supergiant, a high mass star explodes and forms a ________.

• planetary nebula

• red giant

• supernova

What causes a star to enter the Red Giant phase?

• The star explodes.

• The star runs out of Hydrogen.

• Gravity pulls it apart.