Question 1

Supernovae can trigger star formation.

Accepted Answer

A) True 
 B)False

Question 2

How common are supernova events in our galaxy?

Accepted Answer

Supernovae are relatively rare

Question 3

A white dwarf is supported against its own gravity by the inability of its _______________ electrons to pack into a smaller volume.

Accepted Answer

The answer of A white dwarf is supported against its...

Question 4

A planetary nebula is visible due to ____.

Accepted Answer

A)  blackbody continuum radiation from the interstellar medium 
B)  line emission from the interstellar medium 
C)  scattering from dust grains ejected by a dying star 
D)  blackbody continuum radiation from a hot gas ejected by a dying star 
E)  line emission from ionized hydrogen gas ejected by a dying star 
A)  blackbody continuum radiation from the interstellar medium 
B)  line emission from the interstellar medium 
C)  scattering from dust grains ejected by a dying star 
D)  blackbody continuum radiation from a hot gas ejected by a dying star 
E)  line emission from ionized hydrogen gas ejected by a dying star

Question 5

Which event would you expect to be most closely associated with regions of active star formation?

Accepted Answer

A)  Type Ia supernovae 
B)  Type Ib supernovae 
C)  Type II supernovae 
D)  novae 
E)  planetary nebulae 
A)  Type Ia supernovae 
B)  Type Ib supernovae 
C)  Type II supernovae 
D)  novae 
E)  planetary nebulae

Question 6

As a white dwarf ages, its position on a standard H-R diagram will move ____.

Accepted Answer

A)  upward and to the right 
B)  upward and to the left 
C)  downward and to the right 
D)  straight downward 
E)  downward and to the left 
A)  upward and to the right 
B)  upward and to the left 
C)  downward and to the right 
D)  straight downward 
E)  downward and to the left

Question 7

The process and result of a star's evolution off of the main sequence are determined primarily by the star's mass.

Accepted Answer

A) True 
 B)False

Question 8

What keeps red dwarfs from becoming giant stars?

Accepted Answer

Red dwarf interiors are highly convectiv

Question 9

Matter swirling into a compact object forms a(n) _______________ disk.

Accepted Answer

The answer of Matter swirling into a compact object forms...

Question 10

White dwarfs are rare objects.

Accepted Answer

A) True 
 B)False

Question 11

During the Sun's main-sequence lifetime, ____.

Accepted Answer

A)  the solar wind will remove about 50% of the Sun's total mass 
B)  the solar wind will remove about 10% of the Sun's total mass 
C)  the solar wind will remove 1-2% of the Sun's total mass 
D)  the solar wind will remove a tiny fraction of the Sun's total mass 
E)  mass loss from the solar wind will be balanced by material falling onto the surface from the corona 
A)  the solar wind will remove about 50% of the Sun's total mass 
B)  the solar wind will remove about 10% of the Sun's total mass 
C)  the solar wind will remove 1-2% of the Sun's total mass 
D)  the solar wind will remove a tiny fraction of the Sun's total mass 
E)  mass loss from the solar wind will be balanced by material falling onto the surface from the corona

Question 12

The first steps of evolution off the main sequence are the same for both medium-mass and high-mass stars.

Accepted Answer

A) True 
 B)False

Question 13

Binary systems with pairs of stars orbiting each other are ____.

Accepted Answer

A)  common, and important for some types of stellar evolution 
B)  common, but not important for stellar evolution 
C)  uncommon, but important for some types of stellar evolution 
D)  uncommon, but not important for stellar evolution 
E)  very rare, but important for some types of stellar evolution 
A)  common, and important for some types of stellar evolution 
B)  common, but not important for stellar evolution 
C)  uncommon, but important for some types of stellar evolution 
D)  uncommon, but not important for stellar evolution 
E)  very rare, but important for some types of stellar evolution

Question 14

Stars larger than about 1.4 solar masses must lose mass in order to become white dwarfs.

Accepted Answer

A) True 
 B)False

Supernovae can trigger star formation.

How common are supernova events in our galaxy?

A white dwarf is supported against its own gravity by the inability of its _______________ electrons to pack into a smaller volume.

A planetary nebula is visible due to ____.

Which event would you expect to be most closely associated with regions of active star formation?

As a white dwarf ages, its position on a standard H-R diagram will move ____.

The process and result of a star's evolution off of the main sequence are determined primarily by the star's mass.

What keeps red dwarfs from becoming giant stars?

Matter swirling into a compact object forms a(n) _______________ disk.

White dwarfs are rare objects.

During the Sun's main-sequence lifetime, ____.

The first steps of evolution off the main sequence are the same for both medium-mass and high-mass stars.

Binary systems with pairs of stars orbiting each other are ____.

Stars larger than about 1.4 solar masses must lose mass in order to become white dwarfs.

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

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Exam 13: Deaths of Stars

Supernovae can trigger star formation.

How common are supernova events in our galaxy?

A white dwarf is supported against its own gravity by the inability of its _______________ electrons to pack into a smaller volume.

A planetary nebula is visible due to ____.

Which event would you expect to be most closely associated with regions of active star formation?

As a white dwarf ages, its position on a standard H-R diagram will move ____.

The process and result of a star's evolution off of the main sequence are determined primarily by the star's mass.

What keeps red dwarfs from becoming giant stars?

Matter swirling into a compact object forms a(n) _______________ disk.

White dwarfs are rare objects.

During the Sun's main-sequence lifetime, ____.

The first steps of evolution off the main sequence are the same for both medium-mass and high-mass stars.

Binary systems with pairs of stars orbiting each other are ____.

Stars larger than about 1.4 solar masses must lose mass in order to become white dwarfs.

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

Filters