Stellar Remnants

A white dwarf has a lifespan of 5 billion years or more.

• true

• false

what are the two types of stars

• star remnants and sequence stars

• red and white dwarfs

• Venus and Mars

• main sequence and star remnants

Select the types of neutron stars

• pulsar

• O-type sequence

• magnetars

• blitzar

What type of star is left behind after a supernova explosion if the core remnant is between 1.4 and 3 solar masses?

• White dwarf

• Neutron star

• Black hole

• Red dwarf

What is the Chandrasekhar limit?

• The maximum mass of a neutron star

• The maximum mass of a white dwarf

• The minimum mass required for hydrogen fusion

• The distance beyond which parallax cannot be measured

Which of the following stars is most likely to end its life as a black hole?

• A 0.5 solar mass red dwarf

• A 1 solar mass sun-like star

• A 3 solar mass white dwarf

• A 25 solar mass blue supergiant

What is the remnant core left after a low mass star sheds its outer layers?

During the supernova explosion of a massive star, what is the primary process that releases energy?

• Nuclear fusion

• Nuclear fission

• Gravitational collapse

• Neutron capture

What happens to a star during the planetary nebula phase?

• It collapses into a black hole

• It explodes as a supernova

• It sheds its outer layers

• It fuses iron in its core

White dwarfs are remnants of low to medium mass stars.

• True

• False

Tags

NGSS.HS-ESS1-3