Question 1

The current sunspot cycle is the most active in a century.

Accepted Answer

A) True 
 B)False

Question 2

Why is it hard to observe the chromosphere?

Accepted Answer

Most of its energy is in the b...

Question 3

The Maunder Minimum refers to a period of sustained solar _ from 1645 until about 1715.

Accepted Answer

The answer of The Maunder Minimum refers to a period...

Question 4

The Sun is actually more luminous at sunspot minimum than at maximum.

Accepted Answer

A) True 
 B)False

Question 5

The blows out of the coronal holes.

Accepted Answer

The answer of The blows out of the coronal holes....

Question 6

The sunspot cycle averages about 11 months.

Accepted Answer

A) True 
 B)False

Question 7

During a period of high solar activity, the corona

Accepted Answer

A)   disappears.
B)   is more irregular.
C)   shrinks to half its normal size.
D)   becomes smooth and even.
E)   cools almost to the temperature of the photosphere.F) C) and D)
G) B) and D)

Question 8

Which is the net result of the proton- proton chain?

Accepted Answer

A)   2 protons -deuterium + a positron + an antineutrino + X- rays
B)   4 protons -1 helium 4 + a positron + a neutrino + gamma rays
C)   4 protons -1 helium 4 + 2 neutrinos + gamma rays
D)   4 protons -2 helium 2 + 2 positrons + ultraviolet radiation
E)   6 protons -2 helium 4 + 3 positrons + 3 neutrinos + gamma raysF) A) and D)
G) A) and E)

Question 9

Apply Wein's law to explain the corona's main energy release.

Accepted Answer

At millions of degrees, most o...

Question 10

From inside out, which is in the correct order for the structure of the Sun?

Accepted Answer

A)   core, photosphere, radiative zone, corona
B)   core, chromosphere, photosphere
C)   core, convective zone, radiative zone
D)   core, convective zone, radiative zone, granulation
E)   core, radiative zone, convective zone, chromosphereF) A) and E)
G) A) and B)

Question 11

At its current rate of consuming hydrogen, the Sun can stably shine for .

Accepted Answer

another fi...

Question 12

Although sunspots are cooler areas in the photosphere, when they increase in number that tells us the Sun is becoming more active.

Accepted Answer

A) True 
 B)False

Question 13

The pattern of hot convective cells rising in the photosphere is called

Accepted Answer

A)   aurora.
B)   granulation.
C)   sunspots.
D)   flares.
E)   prominences.F) None of the above
G) B) and C)

Question 14

Flares and prominences are more numerous during _ .

Accepted Answer

The answer of Flares and prominences are more numerous during...

Question 15

Describe the changes in the Sun from beginning to end of a sunspot cycle.

Accepted Answer

The first spots appear at higher latitud...

Question 16

The Sun's average density is about the same at Jupiter's, suggesting a similar composition.

Accepted Answer

A) True 
 B)False

Question 17

The chromosphere is faint because of its low density.

Accepted Answer

A) True 
 B)False

Question 18

As the Sun rotates, an individual sunspot can be tracked across its face. From eastern to western limb, this takes about

Accepted Answer

A)   12 hours.
B)   two weeks.
C)   a week.
D)   5.5 years.
E)   a month.F) A) and B)
G) A) and C)

Question 19

The outward pressure of hot gas in the Sun

Accepted Answer

A)   weakens the magnetic field.
B)   is responsible for variations in the sunspot cycle.
C)   is increasing the Sun's diameter.
D)   is cooling the photosphere.
E)   is balanced by the inward gravitational pressure.F) A) and C)
G) B) and E)

Question 20

In the proton- proton cycle, the positron is

Accepted Answer

A)   a spin conservation particle.
B)   the chief means energy reaches the photosphere.
C)   intermediate between the proton and neutron in mass.
D)   massless.
E)   an anti- electron.F) A) and B)
G) A) and C)

Exam 10: The Sun: Our Parent Star

Describe the changes in the Sun from beginning to end of a sunspot cycle.

Correct AnswerverifiedThe first spots appear at higher latitud...View AnswerShow Answer

Flares and prominences are more numerous during _ .

Correct AnswerverifiedShow Answer

From inside out, which is in the correct order for the structure of the Sun?

Correct AnswerverifiedShow Answer

Apply Wein's law to explain the corona's main energy release.

Correct AnswerverifiedAt millions of degrees, most o...View AnswerShow Answer

In the proton- proton cycle, the positron is

Correct AnswerverifiedShow Answer

The sunspot cycle averages about 11 months.

Correct AnswerverifiedShow Answer

Although sunspots are cooler areas in the photosphere, when they increase in number that tells us the Sun is becoming more active.

Correct AnswerverifiedShow Answer

The Sun is actually more luminous at sunspot minimum than at maximum.

Correct AnswerverifiedShow Answer

The current sunspot cycle is the most active in a century.

Correct AnswerverifiedShow Answer

The outward pressure of hot gas in the Sun

Correct AnswerverifiedShow Answer

At its current rate of consuming hydrogen, the Sun can stably shine for .

Correct Answerverifiedanother fi...View AnswerShow Answer

The pattern of hot convective cells rising in the photosphere is called

Correct AnswerverifiedShow Answer

The chromosphere is faint because of its low density.

Correct AnswerverifiedShow Answer

The blows out of the coronal holes.

Correct AnswerverifiedShow Answer

The Sun's average density is about the same at Jupiter's, suggesting a similar composition.

Correct AnswerverifiedShow Answer

Why is it hard to observe the chromosphere?

Correct AnswerverifiedMost of its energy is in the b...View AnswerShow Answer

As the Sun rotates, an individual sunspot can be tracked across its face. From eastern to western limb, this takes about

Correct AnswerverifiedShow Answer

During a period of high solar activity, the corona

Correct AnswerverifiedShow Answer

The Maunder Minimum refers to a period of sustained solar _ from 1645 until about 1715.

Correct AnswerverifiedShow Answer

Which is the net result of the proton- proton chain?

Correct AnswerverifiedShow Answer

Correct Answer
verified
The first spots appear at higher latitud...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
At millions of degrees, most o...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
another fi...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Most of its energy is in the b...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified