Question 1

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 C

Question 2

If the last peak in sunspot numbers occurred in 2013,then the next solar max is ________.

Accepted Answer

2024.

Question 3

A loop of gas following the magnetic field lines between sunspots' poles is:

Accepted Answer

A)  a flare. 
B)  a ray. 
C)  a coronal hole. 
D)  a prominence. 
E)  a coronal mass ejection. 
A)  a flare. 
B)  a ray. 
C)  a coronal hole. 
D)  a prominence. 
E)  a coronal mass ejection. D

Question 4

What happens to most of the solar neutrinos between the Sun's core and Earth?

Accepted Answer

Two-thirds of them d

Question 5

The percentage (by mass)of the Sun that is Hydrogen is about:

Accepted Answer

A)  91%. 
B)  71%. 
C)  27%. 
D)  9%. 
E)  less than 1%. 
A)  91%. 
B)  71%. 
C)  27%. 
D)  9%. 
E)  less than 1%.

Question 6

Presently,what is happening to the helium in the Sun's core?

Accepted Answer

It builds up there,f

Question 7

Iron is observed in the Sun's ________.

Accepted Answer

The answer of Iron is observed in the Sun's ________....

Question 8

The sunspot cycle is sometimes described as lasting 11 years,but others prefer to consider it as 22 years; explain the rationale.

Accepted Answer

The number of sunspots comes to a peak a

Question 9

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

Accepted Answer

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

Question 10

Which of these are NOT associated with the active Sun?

Accepted Answer

A)  sunspots 
B)  prominences 
C)  granulation 
D)  flares 
E)  aurora 
A)  sunspots 
B)  prominences 
C)  granulation 
D)  flares 
E)  aurora

Question 11

Relate prominences and sunspots to magnetic fields.

Accepted Answer

The sunspots are the cooler magnetic pol

Question 12

In spite of its high temperature,we observe the solar corona best during ________.

Accepted Answer

a total so

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

In the proton-proton cycle,.007 of the mass ends up as energy,not helium.

Accepted Answer

A) True 
 B)False

Question 15

The speed of light is 3.00 × 10⁸ m/s.If 2.00 kg of mass is converted to energy,how much energy will be produced?

Accepted Answer

A)  1.80 × 10¹⁷ J 
B)  6.00 × 10⁸ J 
C)  1.50 × 10⁸ J 
D)  6.00 × 10⁴ J 
E)  9.00 × 10¹⁶ J 
A)  1.80 × 10¹⁷ J 
B)  6.00 × 10⁸ J 
C)  1.50 × 10⁸ J 
D)  6.00 × 10⁴ J 
E)  9.00 × 10¹⁶ J

Question 16

The Sun's luminosity is greatest when there are few or no sunspots on the Sun.

Accepted Answer

A) True 
 B)False

Question 17

The Sun's magnetic field has been traced out far beyond the orbit of Pluto and even Sedna.

Accepted Answer

A) True 
 B)False

Question 18

The solar constant 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.

Question 19

Sunspots:

Accepted Answer

A)  are always found close to the Sun's poles. 
B)  come in pairs, representing the north and south magnetic fields. 
C)  were most numerous during the Maunder Minimum. 
D)  travel over the surface of the Sun from pole to pole. 
E)  are relatively constant in number every year. 
A)  are always found close to the Sun's poles. 
B)  come in pairs, representing the north and south magnetic fields. 
C)  were most numerous during the Maunder Minimum. 
D)  travel over the surface of the Sun from pole to pole. 
E)  are relatively constant in number every year.

Question 20

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

Accepted Answer

At millions of degrees,most of

Exam 16: The Sun: Our Parent Star

How many planet Earths could fit inside the Sun?

If the last peak in sunspot numbers occurred in 2013,then the next solar max is ________.

A loop of gas following the magnetic field lines between sunspots' poles is:

What happens to most of the solar neutrinos between the Sun's core and Earth?

The percentage (by mass)of the Sun that is Hydrogen is about:

Presently,what is happening to the helium in the Sun's core?

Iron is observed in the Sun's ________.

The sunspot cycle is sometimes described as lasting 11 years,but others prefer to consider it as 22 years; explain the rationale.

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

Which of these are NOT associated with the active Sun?

Relate prominences and sunspots to magnetic fields.

In spite of its high temperature,we observe the solar corona best during ________.

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

In the proton-proton cycle,.007 of the mass ends up as energy,not helium.

The speed of light is 3.00 × 10⁸ m/s.If 2.00 kg of mass is converted to energy,how much energy will be produced?

The Sun's luminosity is greatest when there are few or no sunspots on the Sun.

The Sun's magnetic field has been traced out far beyond the orbit of Pluto and even Sedna.

The solar constant is a measure of:

Sunspots:

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

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: Earth's 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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