Question 1

What nuclear fusion mechanism does an isolated white dwarf use to generate energy?

Accepted Answer

A)  proton-proton chain 
B)  CNO cycle 
C)  triple alpha process 
D)  white dwarfs don't generate their own energy. 
A)  proton-proton chain 
B)  CNO cycle 
C)  triple alpha process 
D)  white dwarfs don't generate their own energy.

Question 2

The HST visual wavelength image shown above is an example of a __________, where gaseous material is blown off the surface of a white dwarf.

Accepted Answer

A)  planetary nebula 
B)  supernova 
C)  nova 
D)  None of the other choices are correct. 
A)  planetary nebula 
B)  supernova 
C)  nova 
D)  None of the other choices are correct.

Question 3

________ clusters are blue in color and diffuse.

Accepted Answer

The answer of ________ clusters are blue in color and...

Question 4

What do astronomers think is the eventual fate of a white dwarf?

Accepted Answer

As it radiates energy into space, a whit

Question 5

Because more massive stars have more gravitational energy, they can fuse heavier nuclear fuels.

Accepted Answer

A) True 
 B)False

Question 6

From what part of the H-R diagram have the giants in a star cluster evolved?

Accepted Answer

Masses that were on

Question 7

Why do higher-mass stars live shorter lives on the main sequence than lower-mass stars?

Accepted Answer

A)  Higher-mass stars burn through their nuclear fuel faster. 
B)  Lower-mass stars don't get their energy from that same nuclear fusion source as higher-mass stars. 
C)  Higher-mass stars have less hydrogen fuel to burn. 
D)  Lower-mass stars spend a longer time evolving to the main sequence. 
E)  All of the other choices are false. 
A)  Higher-mass stars burn through their nuclear fuel faster. 
B)  Lower-mass stars don't get their energy from that same nuclear fusion source as higher-mass stars. 
C)  Higher-mass stars have less hydrogen fuel to burn. 
D)  Lower-mass stars spend a longer time evolving to the main sequence. 
E)  All of the other choices are false.

Question 8

Red dwarfs (have/have not)  yet died or evolved off the main sequence.

Accepted Answer

The answer of Red dwarfs (have/have not)  yet died or...

What nuclear fusion mechanism does an isolated white dwarf use to generate energy?

The HST visual wavelength image shown above is an example of a __________, where gaseous material is blown off the surface of a white dwarf.

________ clusters are blue in color and diffuse.

What do astronomers think is the eventual fate of a white dwarf?

Because more massive stars have more gravitational energy, they can fuse heavier nuclear fuels.

From what part of the H-R diagram have the giants in a star cluster evolved?

Why do higher-mass stars live shorter lives on the main sequence than lower-mass stars?

Red dwarfs (have/have not) yet died or evolved off the main sequence.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 10: The Deaths of Stars

What nuclear fusion mechanism does an isolated white dwarf use to generate energy?

The HST visual wavelength image shown above is an example of a __________, where gaseous material is blown off the surface of a white dwarf.

________ clusters are blue in color and diffuse.

What do astronomers think is the eventual fate of a white dwarf?

Because more massive stars have more gravitational energy, they can fuse heavier nuclear fuels.

From what part of the H-R diagram have the giants in a star cluster evolved?

Why do higher-mass stars live shorter lives on the main sequence than lower-mass stars?

Red dwarfs (have/have not) yet died or evolved off the main sequence.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters