Question 1

Matter falling into a black hole arranges itself in the shape of a ____.

Accepted Answer

A)  spherical shell that is thick at the edges and thin closer to the center 
B)  spherical shell that is thin at the edges and thick closer to the center 
C)  disk that is thick at the outer edge, thin along the inner ring 
D)  disk that is thin at the outer edge and thick closer to the center 
E)  disk that is thin from the outer edge to the center 
A)  spherical shell that is thick at the edges and thin closer to the center 
B)  spherical shell that is thin at the edges and thick closer to the center 
C)  disk that is thick at the outer edge, thin along the inner ring 
D)  disk that is thin at the outer edge and thick closer to the center 
E)  disk that is thin from the outer edge to the center

Question 2

Different types of active galaxies are caused by different orientations of the central black hole's _______________.

Accepted Answer

The answer of Different types of active galaxies are caused...

Question 3

Double-lobed radio galaxies are an effect of black hole jets.

Accepted Answer

A) True 
 B)False

Question 4

Some active radio galaxies exhibit _______________ of gas heated by jets.

Accepted Answer

The answer of Some active radio galaxies exhibit _______________ of...

Question 5

The structure of black hole jets is believed to be controlled by magnetism.

Accepted Answer

A) True 
 B)False

Question 6

Collisions in the early Universe were rare.

Accepted Answer

A) True 
 B)False

Question 7

Double-lobed radio galaxies are____.

Accepted Answer

A)  spiral galaxies with unusually luminous nuclei 
B)  elliptical galaxies with very broad emission lines 
C)  explained by the double-exhaust model 
D)  extremely luminous objects with high redshifts 
E)  glowing green gases due to excitation from energy from an active core 
A)  spiral galaxies with unusually luminous nuclei 
B)  elliptical galaxies with very broad emission lines 
C)  explained by the double-exhaust model 
D)  extremely luminous objects with high redshifts 
E)  glowing green gases due to excitation from energy from an active core

Question 8

The formation of a galactic central bulge is believed to ____.

Accepted Answer

A)  be a slow steady process lasting billions of years 
B)  start after the formation of spiral arms 
C)  be a violent process which adds mass to the central black hole 
D)  begin when the central black hole has reached mature size 
E)  continue throughout the galaxy's life body 
A)  be a slow steady process lasting billions of years 
B)  start after the formation of spiral arms 
C)  be a violent process which adds mass to the central black hole 
D)  begin when the central black hole has reached mature size 
E)  continue throughout the galaxy's life body

Matter falling into a black hole arranges itself in the shape of a ____.

Different types of active galaxies are caused by different orientations of the central black hole's _______________.

Double-lobed radio galaxies are an effect of black hole jets.

Some active radio galaxies exhibit _______________ of gas heated by jets.

The structure of black hole jets is believed to be controlled by magnetism.

Collisions in the early Universe were rare.

Double-lobed radio galaxies are____.

The formation of a galactic central bulge is believed to ____.

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

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

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

Exam 17: Supermassive Black Holes and Active Galaxies

Matter falling into a black hole arranges itself in the shape of a ____.

Different types of active galaxies are caused by different orientations of the central black hole's _______________.

Double-lobed radio galaxies are an effect of black hole jets.

Some active radio galaxies exhibit _______________ of gas heated by jets.

The structure of black hole jets is believed to be controlled by magnetism.

Collisions in the early Universe were rare.

Double-lobed radio galaxies are____.

The formation of a galactic central bulge is believed to ____.

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

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

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