Stellar Evolution

What is a Type II Supernova?

• The birth of a new star

• The death of a massive star (8+ solar masses)

• A small star's lifecycle

• A black hole formation

Why do low mass stars eventually cool to a black dwarf?

• Because they run out of hydrogen

• Because fusion has stopped

• Because they lose their outer layers

• Because they collapse under gravity

What is the final stage of a low mass star's life cycle?

• Black hole

• Neutron star

• Black dwarf

• Red giant

What is the heaviest element you can find in the core of a supermassive star?

• Neon

• Magnesium

• Silicon

• Iron

Tags

NGSS.HS-ESS1-3

What are protons and electrons crushed into during the collapse of a high mass star's core?

• Photons and quarks.

• Neutrons and neutrinos.

• Atoms and molecules.

• Ions and isotopes.

Tags

NGSS.HS-PS1-8

Which of the following is true about the regions of a black hole?

• Light can escape from the singularity

• The singularity is the outermost region

• The singularity has infinite density

• The singularity is where time speeds up

What type of star is a nova typically associated with?

• Red giant

• White dwarf

• Neutron star

• Supernova

What happens to the gas when a white dwarf steals material from another star?

• It forms a flattened disk called an accretion disk.

• It disperses into space.

• It forms a new star.

• It becomes a black hole.

Tags

NGSS.HS-ESS1-3

What does stellar evolution depend on?

• The temperature of the star

• The color of the star

• The mass of the star

• The distance of the star from Earth

What process do stars undergo on the main sequence?

• Carbon fusion into oxygen

• Helium fusion into carbon

• Hydrogen fusion into helium

• Iron fusion into heavier elements

Tags

NGSS.HS-ESS1-1