Question 1

What two energy transport mechanisms, in order from outside the core to the surface, arefound in the Sun?

Accepted Answer

A) convection, conduction 
B) radiative diffusion, convection 
C) conduction, radiative diffusion 
D) radiative diffusion, conduction 
E) conduction, convection 
A) convection, conduction 
B) radiative diffusion, convection 
C) conduction, radiative diffusion 
D) radiative diffusion, conduction 
E) conduction, convection B

Question 2

The luminosity of the Sun is a measure of:

Accepted Answer

A) the energy received by the Sun on Earth's surface. 
B) the energy received by the Sun at the location of Earth. 
C) the energy received by the Sun at any location in the solar system. 
D) the energy emitted by the Sun at the photosphere. 
E) the total energy emitted by the Sun in all directions. 
A) the energy received by the Sun on Earth's surface. 
B) the energy received by the Sun at the location of Earth. 
C) the energy received by the Sun at any location in the solar system. 
D) the energy emitted by the Sun at the photosphere. 
E) the total energy emitted by the Sun in all directions. E

Question 3

In the proton-proton cycle, you must first make deuterium, then helium.

Accepted Answer

A) True 
 B)False  True

Question 4

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

Accepted Answer

At millions of degrees, most o

Question 5

Explain what is meant by the solar cycle. What role does magnetism play?

Accepted Answer

The solar cycle is the periodic reversal

Question 6

Describe the transport of energy, from the deep interior of the Sun, to when it finally reachesthe Earth. Include the various methods of transport.

Accepted Answer

Energy is produced in the core. It enter

Question 7

Which of the following is NOT a property of neutrinos?

Accepted Answer

A) can change forms in the eight minutes from the Sun's core to us 
B) almost massless 
C) can travel very close to the speed of light 
D) neutral in charge 
E) cannot interact at all with normal matter 
A) can change forms in the eight minutes from the Sun's core to us 
B) almost massless 
C) can travel very close to the speed of light 
D) neutral in charge 
E) cannot interact at all with normal matter

Question 8

The observable ________ is a thin layer in which the solar material becomes suddenly muchmore opaque as we look deeper into the Sun.

Accepted Answer

The answer of The observable ________ is a thin layer...

Question 9

The surface magnetic field of the Sun is found by measurement of the extra width in spectrallines due to the ________ Effect.

Accepted Answer

The answer of The surface magnetic field of the Sun...

Question 10

How many planet Earths could fit inside the Sun?

Accepted Answer

A) 110 
B) about a thousand 
C) a little over a million 
D) almost ten million 
E) close to a billion 
A) 110 
B) about a thousand 
C) a little over a million 
D) almost ten million 
E) close to a billion

Question 11

From where does most of the solar wind flow?

Accepted Answer

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

Question 12

Why couldn't you stand on the Sun's surface?

Accepted Answer

A) The Sun has no surface at all...the photosphere is an illusion. 
B) You could stand on the surface. 
C) The Sun doesn't have a solid surface. 
D) The Sun's surface is too highly magnetized for anything to survive there. 
E) You could stand on it, if a sufficiently protective spacesuit could be designed. 
A) The Sun has no surface at all...the photosphere is an illusion. 
B) You could stand on the surface. 
C) The Sun doesn't have a solid surface. 
D) The Sun's surface is too highly magnetized for anything to survive there. 
E) You could stand on it, if a sufficiently protective spacesuit could be designed.

Question 13

The solar magnetic field is strongest in those regions called ________, which are poles andusually thus occur in pairs.

Accepted Answer

The answer of The solar magnetic field is strongest in...

Question 14

The Sun's magnetic field is measured by measuring:

Accepted Answer

A) the shift of spectral lines. 
B) the temperature of the Sun. 
C) the solar wind. 
D) the splitting of spectral lines. 
E) the spectral parallax. 
A) the shift of spectral lines. 
B) the temperature of the Sun. 
C) the solar wind. 
D) the splitting of spectral lines. 
E) the spectral parallax.

Question 15

Loops of glowing hydrogen seen hanging over the solar limb during totality are:

Accepted Answer

A) solar rainbows. 
B) haloes. 
C) prominences. 
D) filaments. 
E) flares. 
A) solar rainbows. 
B) haloes. 
C) prominences. 
D) filaments. 
E) flares.

Question 16

The Sun's ________ transports material from the Sun's equator to its poles and back to theequator.

Accepted Answer

The answer of The Sun's ________ transports material from the...

Question 17

The polarity of sunspot magnetic fields:

Accepted Answer

A) reverses every 22 years. 
B) reverses every 11 years. 
C) is consistent for all sunspots in the same hemisphere. 
D) is unrelated between different sunspots. 
E) changes the color of sunspots. 
A) reverses every 22 years. 
B) reverses every 11 years. 
C) is consistent for all sunspots in the same hemisphere. 
D) is unrelated between different sunspots. 
E) changes the color of sunspots.

Question 18

There appears to be a correlation between the 22-year solar cycle and:

Accepted Answer

A) droughts in North America. 
B) asteroid impacts on Earth. 
C) change of which political party has the majority in the U.S. Congress. 
D) the length of Mercury's day. 
E) the length of Saturn's year. 
A) droughts in North America. 
B) asteroid impacts on Earth. 
C) change of which political party has the majority in the U.S. Congress. 
D) the length of Mercury's day. 
E) the length of Saturn's year.

Question 19

If the corona is so hot, why must we wait for a total solar eclipse to glimpse it?

Accepted Answer

It is so hot that almost all the energy

Question 20

A sunbather on the clear day is receiving about 500 watts of solar power.

Accepted Answer

A) True 
 B)False

Exam 16: The Sun: Our Parent Star

What two energy transport mechanisms, in order from outside the core to the surface, arefound in the Sun?

The luminosity of the Sun is a measure of:

In the proton-proton cycle, you must first make deuterium, then helium.

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

Explain what is meant by the solar cycle. What role does magnetism play?

Describe the transport of energy, from the deep interior of the Sun, to when it finally reachesthe Earth. Include the various methods of transport.

Which of the following is NOT a property of neutrinos?

The observable ________ is a thin layer in which the solar material becomes suddenly muchmore opaque as we look deeper into the Sun.

The surface magnetic field of the Sun is found by measurement of the extra width in spectrallines due to the ________ Effect.

How many planet Earths could fit inside the Sun?

From where does most of the solar wind flow?

Why couldn't you stand on the Sun's surface?

The solar magnetic field is strongest in those regions called ________, which are poles andusually thus occur in pairs.

The Sun's magnetic field is measured by measuring:

Loops of glowing hydrogen seen hanging over the solar limb during totality are:

The Sun's ________ transports material from the Sun's equator to its poles and back to theequator.

The polarity of sunspot magnetic fields:

There appears to be a correlation between the 22-year solar cycle and:

If the corona is so hot, why must we wait for a total solar eclipse to glimpse it?

A sunbather on the clear day is receiving about 500 watts of solar power.

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Radiation: Information From the Cosmos

Spectroscopy: the Inner Workings of Atoms

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

Earth: Our Home in Space

The Moon and Mercury: Scorched and Battered Worlds

Venus: Earths Sister Planet

Mars: a Near Miss for Life

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

Exoplanets: Planetary Systems Beyond Our Own

The Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Gas and Dust Among the Stars

Star Formation: a Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae, Supernovae, and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone

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