Question 1

In the Sun, rising currents of hot gas below the photosphere cause granulation.

Accepted Answer

A) True 
 B)False

Question 2

A filtergram is used to study layers below the photosphere.

Accepted Answer

A) True 
 B)False

Question 3

The ________ is (are) the hot gases that are the moving extension of the Sun's corona.

Accepted Answer

A)  spicules 
B)  prominences 
C)  flares 
D)  supergranules 
E)  solar wind 
A)  spicules 
B)  prominences 
C)  flares 
D)  supergranules 
E)  solar wind

Question 4

The element most abundant in the Sun is oxygen.

Accepted Answer

A) True 
 B)False

Question 5

What does the granulation tell us about the layers below the photosphere?

Accepted Answer

Observations of granules show that their

Question 6

In some regions of the corona, the magnetic field does not loop back to the Sun, and the gas escapes unimpeded. These regions are called _______ and are believed to be the source of the solar wind.

Accepted Answer

A)  prominences 
B)  flares 
C)  granules 
D)  auroras 
E)  coronal holes 
A)  prominences 
B)  flares 
C)  granules 
D)  auroras 
E)  coronal holes

Question 7

The chromosphere of the Sun

Accepted Answer

A)  is hotter than the photosphere. 
B)  appears yellow-white in color during total solar eclipse. 
C)  is the visible surface of the Sun. 
D)  produces an absorption spectrum. 
E)  all of the others. 
A)  is hotter than the photosphere. 
B)  appears yellow-white in color during total solar eclipse. 
C)  is the visible surface of the Sun. 
D)  produces an absorption spectrum. 
E)  all of the others.

Question 8

The feature shown in the above image of the Sun is a solar flare.

Accepted Answer

A) True 
 B)False

Question 9

The Sun's magnetic field is evident in the looped shapes of

Accepted Answer

A)  solar flares. 
B)  sunspots. 
C)  the corona. 
D)  granules. 
E)  prominences. 
A)  solar flares. 
B)  sunspots. 
C)  the corona. 
D)  granules. 
E)  prominences.

Question 10

Granulation is caused by which energy transport?

Accepted Answer

A)  convection 
B)  radiation 
C)  conduction 
D)  none of the others 
A)  convection 
B)  radiation 
C)  conduction 
D)  none of the others

Question 11

The ________ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.

Accepted Answer

A)  dynamo effect 
B)  Zeeman effect 
C)  Babcock effect 
D)  proton-proton chain 
E)  aurora 
A)  dynamo effect 
B)  Zeeman effect 
C)  Babcock effect 
D)  proton-proton chain 
E)  aurora

Question 12

Sunspots

Accepted Answer

A)  are hotter than their surroundings. 
B)  are regions where material is rising from below the photosphere. 
C)  show the Zeeman effect indicating the presence of strong magnetic fields. 
D)  produce spicules. 
E)  are generally found near the poles of the Sun during sunspot maximum. 
A)  are hotter than their surroundings. 
B)  are regions where material is rising from below the photosphere. 
C)  show the Zeeman effect indicating the presence of strong magnetic fields. 
D)  produce spicules. 
E)  are generally found near the poles of the Sun during sunspot maximum.

Question 13

Uranium serves as the source of the Sun's energy because

Accepted Answer

A)  uranium atoms can be fissioned into lighter atoms and energy. 
B)  uranium atoms can be fused into helium and energy. 
C)  uranium atoms can be fused into hydrogen and energy. 
D)  none of the above because fusion of hydrogen atoms serves as the Sun's source of energy. 
E)  none of the above because fusion of helium atoms serves as the Sun's source of energy. 
A)  uranium atoms can be fissioned into lighter atoms and energy. 
B)  uranium atoms can be fused into helium and energy. 
C)  uranium atoms can be fused into hydrogen and energy. 
D)  none of the above because fusion of hydrogen atoms serves as the Sun's source of energy. 
E)  none of the above because fusion of helium atoms serves as the Sun's source of energy.

Question 14

The figure shows the Sun and pairs of sunspots. One could say that there is really a 22-year sunspot cycle because

Accepted Answer

A)  the time between sunspot number maxima is 22 years. 
B)  the time between maxima of the same magnetic polarity of sunspot pairs is 22 years. 
C)  it takes sunspots 22 years to move from the poles to the equator. 
D)  at maximum there are 22 sunspots per year. 
A)  the time between sunspot number maxima is 22 years. 
B)  the time between maxima of the same magnetic polarity of sunspot pairs is 22 years. 
C)  it takes sunspots 22 years to move from the poles to the equator. 
D)  at maximum there are 22 sunspots per year.

Question 15

The sunspot cycle affects
I. the latitude at which sunspots are visible at a given time.
II. the number of sunspots that are visible at a given time.
III. the rotation rate of the Sun's equator at a given time.
IV. the magnetic polarity of the sunspots at a given time.

Accepted Answer

A)  I & II 
B)  I & IV 
C)  II & III 
D)  I, II & III 
E)  I, II, & IV 
A)  I & II 
B)  I & IV 
C)  II & III 
D)  I, II & III 
E)  I, II, & IV

Question 16

The ______________ force binds atomic nuclei.

Accepted Answer

The answer of The ______________ force binds atomic nuclei....

Question 17

How long do sunspots typically last? Choose the best answer.

Accepted Answer

A)  an hour 
B)  a day 
C)  a week 
D)  two weeks or a fortnight 
A)  an hour 
B)  a day 
C)  a week 
D)  two weeks or a fortnight

Question 18

Granulation is caused by rising currents of hot gas below the photosphere.

Accepted Answer

A) True 
 B)False

Question 19

If a sunspot has a temperature of 4,500 K and the surrounding solar surface has a temperature of 5,800 K, how many times brighter is the surface compared to the sunspot?

Accepted Answer

A)  0.28 
B)  0.36 
C)  2.8 
D)  3.6 
E)  36 
A)  0.28 
B)  0.36 
C)  2.8 
D)  3.6 
E)  36

Question 20

The study of the oscillations of the surface and interior of the Sun is known as ____________________.

Accepted Answer

The answer of The study of the oscillations of the...

In the Sun, rising currents of hot gas below the photosphere cause granulation.

A filtergram is used to study layers below the photosphere.

The ________ is (are) the hot gases that are the moving extension of the Sun's corona.

The element most abundant in the Sun is oxygen.

What does the granulation tell us about the layers below the photosphere?

In some regions of the corona, the magnetic field does not loop back to the Sun, and the gas escapes unimpeded. These regions are called _______ and are believed to be the source of the solar wind.

The chromosphere of the Sun

The feature shown in the above image of the Sun is a solar flare.

The Sun's magnetic field is evident in the looped shapes of

Granulation is caused by which energy transport?

The ________ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.

Sunspots

Uranium serves as the source of the Sun's energy because

The figure shows the Sun and pairs of sunspots. One could say that there is really a 22-year sunspot cycle because

The sunspot cycle affects I. the latitude at which sunspots are visible at a given time. II. the number of sunspots that are visible at a given time. III. the rotation rate of the Sun's equator at a given time. IV. the magnetic polarity of the sunspots at a given time.

The ______________ force binds atomic nuclei.

How long do sunspots typically last? Choose the best answer.

Granulation is caused by rising currents of hot gas below the photosphere.

If a sunspot has a temperature of 4,500 K and the surrounding solar surface has a temperature of 5,800 K, how many times brighter is the surface compared to the sunspot?

The study of the oscillations of the surface and interior of the Sun is known as ____________________.

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 Family of Stars

The Formation and Structure of Stars

The Deaths 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 7: The Sun

In the Sun, rising currents of hot gas below the photosphere cause granulation.

A filtergram is used to study layers below the photosphere.

The ________ is (are) the hot gases that are the moving extension of the Sun's corona.

The element most abundant in the Sun is oxygen.

What does the granulation tell us about the layers below the photosphere?

In some regions of the corona, the magnetic field does not loop back to the Sun, and the gas escapes unimpeded. These regions are called _______ and are believed to be the source of the solar wind.

The chromosphere of the Sun

The feature shown in the above image of the Sun is a solar flare.

The Sun's magnetic field is evident in the looped shapes of

Granulation is caused by which energy transport?

The ________ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.

Sunspots

Uranium serves as the source of the Sun's energy because

The figure shows the Sun and pairs of sunspots. One could say that there is really a 22-year sunspot cycle because

The sunspot cycle affects I. the latitude at which sunspots are visible at a given time. II. the number of sunspots that are visible at a given time. III. the rotation rate of the Sun's equator at a given time. IV. the magnetic polarity of the sunspots at a given time.

The ______________ force binds atomic nuclei.

How long do sunspots typically last? Choose the best answer.

Granulation is caused by rising currents of hot gas below the photosphere.

If a sunspot has a temperature of 4,500 K and the surrounding solar surface has a temperature of 5,800 K, how many times brighter is the surface compared to the sunspot?

The study of the oscillations of the surface and interior of the Sun is known as ____________________.

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 Family of Stars

The Formation and Structure of Stars

The Deaths 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