Question 1

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.E) All of the above
F) A) and D)

Question 2

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

Accepted Answer

Observations of granules show that their...

Question 3

The element most abundant in the Sun is oxygen.

Accepted Answer

A) True 
 B)False

Question 4

Granulation is caused by which energy transport?

Accepted Answer

A)   convection
B)   radiation
C)   conduction
D)   none of the othersE) A) and D)
F) B) and C)

Question 5

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 windF) C) and D)
G) None of the above

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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)   36F) A) and B)
G) B) and D)

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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.F) C) and D)
G) A) and E)

Question 10

A filtergram is used to study layers below the photosphere.

Accepted Answer

A) True 
 B)False

Question 11

The ______________ force binds atomic nuclei.

Accepted Answer

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

Question 12

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, & IVF) C) and E)
G) B) and D)

Question 13

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.F) A) and E)
G) A) and C)

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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 holesF) A) and D)
G) B) and D)

Question 16

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...

Question 17

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)   auroraF) C) and D)
G) A) and E)

Question 18

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 fortnightE) A) and D)
F) A) and C)

Question 19

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.F) A) and C)
G) B) and E)

Question 20

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.F) A) and E)
G) C) and D)

Exam 7: The Sun

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A filtergram is used to study layers below the photosphere.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

The element most abundant in the Sun is oxygen.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The ______________ force binds atomic nuclei.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Sunspots

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedObservations of granules show that their...View AnswerShow Answer

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

Granulation is caused by which energy transport?

Correct AnswerverifiedShow Answer

The chromosphere of the Sun

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Observations of granules show that their...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified