Question 1

The Sun creates its energy by the process of

Accepted Answer

A)  nuclear fission. 
B)  nuclear fusion. 
C)  convection. 
D)  conduction. 
E)  radiation. 
A)  nuclear fission. 
B)  nuclear fusion. 
C)  convection. 
D)  conduction. 
E)  radiation.

Question 2

Energy is transported through the Sun by ______________ and _____________.

Accepted Answer

convection

Question 3

What is the Babcock model?

Accepted Answer

The Babcock model explains the magnetic

Question 4

________ occur about 130 km above Earth's surface near the polar regions when energy in the solar wind guided by Earth's magnetic field excites gases in the upper atmosphere.

Accepted Answer

A)  Coronas 
B)  Flares 
C)  Auroras 
D)  Coronal holes 
E)  Nuclear fission 
A)  Coronas 
B)  Flares 
C)  Auroras 
D)  Coronal holes 
E)  Nuclear fission

Question 5

Differential rotation occurs in the __________ Sun; we know this because the ____________ travels faster than the ___________ .

Accepted Answer

A)  gaseous, equator, poles 
B)  liquid, poles, equator 
C)  solid, equator, poles 
D)  gaseous, poles, equator 
A)  gaseous, equator, poles 
B)  liquid, poles, equator 
C)  solid, equator, poles 
D)  gaseous, poles, equator

Question 6

The corona is heated by magnetic carpets.

Accepted Answer

A) True 
 B)False

Question 7

What evidence do we have that the sunspots are magnetic?

Accepted Answer

Astronomers measure magnetic fields on t

Question 8

The above image is a __________ wavelength image of granulation in the ___________.

Accepted Answer

A)  infrared, chromosphere 
B)  visual, photosphere 
C)  X-ray, corona 
D)  far-UV, chromosphere 
A)  infrared, chromosphere 
B)  visual, photosphere 
C)  X-ray, corona 
D)  far-UV, chromosphere

Question 9

Helioseismology shows that deeper layers of gas in the Sun rotate at different speeds. When different parts of an object rotate at different rates it is called

Accepted Answer

A)  the dynamo effect. 
B)  lagging. 
C)  reconnection. 
D)  differential rotation. 
E)  the Zeeman effect. 
A)  the dynamo effect. 
B)  lagging. 
C)  reconnection. 
D)  differential rotation. 
E)  the Zeeman effect.

Question 10

What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

Accepted Answer

A)  The granules form the base of a circulation pattern that extends from the photosphere to the outer corona. 
B)  The granules are regions of nuclear energy generation in the Sun's photosphere. 
C)  Each granule contains a strong magnetic field, which compresses and heats the gas underneath it. 
D)  The granules are the tops of hot gas that have risen from the Sun's convective zone. 
A)  The granules form the base of a circulation pattern that extends from the photosphere to the outer corona. 
B)  The granules are regions of nuclear energy generation in the Sun's photosphere. 
C)  Each granule contains a strong magnetic field, which compresses and heats the gas underneath it. 
D)  The granules are the tops of hot gas that have risen from the Sun's convective zone.

Question 11

Why is the solar limb darker than the center?

Accepted Answer

A)  The limb is cooler. 
B)  The limb is in a shadow. 
C)  Light has more atmosphere to travel through and thus more light is absorbed or scattered from your line of sight. 
D)  None of the other choices are correct. 
A)  The limb is cooler. 
B)  The limb is in a shadow. 
C)  Light has more atmosphere to travel through and thus more light is absorbed or scattered from your line of sight. 
D)  None of the other choices are correct.

Question 12

When four hydrogen nuclei fuse to make helium, a small amount of matter is lost. What is the mass difference and energy generated? The mass of hydrogen and helium nuclei are 1.67 × 10-27 kg and 6.646 × 10-27 kg, respectively.

Accepted Answer

A)  0.034 × 10-27 kg, 3 × 10-12 J 
B)  0.022 × 10-27 kg, 2 × 10-12 J 
C)  0.068 × 10-27 kg, 6 × 10-12 J 
D)  0.011 × 10-27 kg, 1 × 10-12 J 
A)  0.034 × 10-27 kg, 3 × 10-12 J 
B)  0.022 × 10-27 kg, 2 × 10-12 J 
C)  0.068 × 10-27 kg, 6 × 10-12 J 
D)  0.011 × 10-27 kg, 1 × 10-12 J

Question 13

A ________ is believed to occur when energy, stored in a twist in the solar magnetic field above a sunspot, is suddenly released.

Accepted Answer

A)  solar flare 
B)  supergranule 
C)  spicule 
D)  coronal hole 
E)  none of the others 
A)  solar flare 
B)  supergranule 
C)  spicule 
D)  coronal hole 
E)  none of the others

Question 14

Helioseismology is the study of the differential rotation and magnetic field of the Sun.

Accepted Answer

A) True 
 B)False

Question 15

High temperatures are required to get H nuclei to fuse because they ________ one another because of their ________ electric charges.

Accepted Answer

A)  attract; negative 
B)  attract; positive 
C)  repel; negative 
D)  repel; positive 
A)  attract; negative 
B)  attract; positive 
C)  repel; negative 
D)  repel; positive

Question 16

As shown in the above image, rising material is flowing from the penumbra and into the umbra where it sinks.

Accepted Answer

A) True 
 B)False

Question 17

The solar constant is a measure of

Accepted Answer

A)  the amount of solar energy reaching Earth. 
B)  the length of the sunspot cycle. 
C)  the period of rotation of the Sun's equator. 
D)  the average number of sunspots seen during the Maunder minimum. 
E)  the Sun's mass. 
A)  the amount of solar energy reaching Earth. 
B)  the length of the sunspot cycle. 
C)  the period of rotation of the Sun's equator. 
D)  the average number of sunspots seen during the Maunder minimum. 
E)  the Sun's mass.

Question 18

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

Accepted Answer

A) True 
 B)False

Question 19

The energy emitted by the Sun comes from chemical reactions.

Accepted Answer

A) True 
 B)False

Question 20

The chromosphere of the Sun has a higher temperature than the photosphere.

Accepted Answer

A) True 
 B)False

The Sun creates its energy by the process of

Energy is transported through the Sun by __ and _.

What is the Babcock model?

________ occur about 130 km above Earth's surface near the polar regions when energy in the solar wind guided by Earth's magnetic field excites gases in the upper atmosphere.

Differential rotation occurs in the Sun; we know this because the travels faster than the _ .

The corona is heated by magnetic carpets.

What evidence do we have that the sunspots are magnetic?

The above image is a wavelength image of granulation in the _.

Helioseismology shows that deeper layers of gas in the Sun rotate at different speeds. When different parts of an object rotate at different rates it is called

What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

Why is the solar limb darker than the center?

When four hydrogen nuclei fuse to make helium, a small amount of matter is lost. What is the mass difference and energy generated? The mass of hydrogen and helium nuclei are 1.67 × 10^-27 kg and 6.646 × 10^-27 kg, respectively.

A ________ is believed to occur when energy, stored in a twist in the solar magnetic field above a sunspot, is suddenly released.

Helioseismology is the study of the differential rotation and magnetic field of the Sun.

High temperatures are required to get H nuclei to fuse because they one another because of their electric charges.

As shown in the above image, rising material is flowing from the penumbra and into the umbra where it sinks.

The solar constant is a measure of

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

The energy emitted by the Sun comes from chemical reactions.

The chromosphere of the Sun has a higher temperature than the photosphere.

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

The Sun creates its energy by the process of

Energy is transported through the Sun by ______________ and _____________.

What is the Babcock model?

________ occur about 130 km above Earth's surface near the polar regions when energy in the solar wind guided by Earth's magnetic field excites gases in the upper atmosphere.

Differential rotation occurs in the __________ Sun; we know this because the ____________ travels faster than the ___________ .

The corona is heated by magnetic carpets.

What evidence do we have that the sunspots are magnetic?

The above image is a __________ wavelength image of granulation in the ___________.

Helioseismology shows that deeper layers of gas in the Sun rotate at different speeds. When different parts of an object rotate at different rates it is called

What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

Why is the solar limb darker than the center?

When four hydrogen nuclei fuse to make helium, a small amount of matter is lost. What is the mass difference and energy generated? The mass of hydrogen and helium nuclei are 1.67 × 10-27 kg and 6.646 × 10-27 kg, respectively.

A ________ is believed to occur when energy, stored in a twist in the solar magnetic field above a sunspot, is suddenly released.

Helioseismology is the study of the differential rotation and magnetic field of the Sun.

High temperatures are required to get H nuclei to fuse because they ________ one another because of their ________ electric charges.

As shown in the above image, rising material is flowing from the penumbra and into the umbra where it sinks.

The solar constant is a measure of

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

The energy emitted by the Sun comes from chemical reactions.

The chromosphere of the Sun has a higher temperature than the photosphere.

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

Energy is transported through the Sun by __ and _.

Differential rotation occurs in the Sun; we know this because the travels faster than the _ .

The above image is a wavelength image of granulation in the _.

When four hydrogen nuclei fuse to make helium, a small amount of matter is lost. What is the mass difference and energy generated? The mass of hydrogen and helium nuclei are 1.67 × 10^-27 kg and 6.646 × 10^-27 kg, respectively.

High temperatures are required to get H nuclei to fuse because they one another because of their electric charges.