Question 1

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

Accepted Answer

Two- thirds of them transform

Question 2

Sunspots usually come in pairs of north and south magnetic poles.

Accepted Answer

A) True 
 B)False

Question 3

During a period of high solar activity, most sunspots lie near the Sun's _.

Accepted Answer

The answer of During a period of high solar activity,...

Question 4

Solar neutrinos take a little more than eight hours to get from the Sun's core to Earth.

Accepted Answer

A) True 
 B)False

Question 5

The temperature of the photosphere is about

Accepted Answer

A)  3,200 K. 
B)  5,800 K. 
C)  11,000 K. 
D)  one million K. 
E)  ten million K. 
A)  3,200 K. 
B)  5,800 K. 
C)  11,000 K. 
D)  one million K. 
E)  ten million K.

Question 6

The thickness of the photosphere is about 100 times the diameter of the Earth, and large sunspots are larger than our whole planet.

Accepted Answer

A) True 
 B)False

Question 7

Which of these are NOT associated with the active Sun?

Accepted Answer

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

Question 8

Granulation is the most obvious proof of solar convective energy transport.

Accepted Answer

A) True 
 B)False

Question 9

Unlike the nuclear reactions in the Sun, everyday chemical reactions involve only the electromagnetic forces.

Accepted Answer

A) True 
 B)False

Question 10

The critical temperature to initiate the proton- proton cycle in the cores of stars is

Accepted Answer

A)  3,000 K. 
B)  5,800 K. 
C)  2,300,000 K. 
D)  10 million K. 
E)  100 million K. 
A)  3,000 K. 
B)  5,800 K. 
C)  2,300,000 K. 
D)  10 million K. 
E)  100 million K.

Question 11

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

Accepted Answer

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

Question 12

What do sunspots tell us about the Sun's rotation rate?

Accepted Answer

Watching and timing sunspots as they tra

Question 13

How are sunspots in the northern and southern hemispheres different?

Accepted Answer

Sunspots always come in pairs, with one

Question 14

Stellar spectra tell us that is the second most abundant element in the Sun.

Accepted Answer

A)  iron 
B)  helium 
C)  oxygen 
D)  carbon 
E)  hydrogen 
A)  iron 
B)  helium 
C)  oxygen 
D)  carbon 
E)  hydrogen

Question 15

Define the solar constant.

Accepted Answer

This is the amount o

Question 16

Nuclear _ _ explains the Sun's immense and sustained energy output.

Accepted Answer

The answer of Nuclear _ _ explains the Sun's immense...

Question 17

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

Question 18

When we glimpse the chromosphere at the start and end of totality, its color is

Accepted Answer

A)  white from the moonlight. 
B)  green (the famous flash). 
C)  blue, due to the ionization of nitrogen by the magnetic fields. 
D)  yellow, like the photosphere below it. 
E)  red, due to ionized hydrogen at lower pressure. 
A)  white from the moonlight. 
B)  green (the famous flash). 
C)  blue, due to the ionization of nitrogen by the magnetic fields. 
D)  yellow, like the photosphere below it. 
E)  red, due to ionized hydrogen at lower pressure.

Question 19

The Solar Neutrino Problem is that we observe more neutrinos than predicted.

Accepted Answer

A) True 
 B)False

Question 20

The solar corona is much cooler than the Sun's surface; hence, we must wait for a total solar eclipse to glimpse it with the naked eye.

Accepted Answer

A) True 
 B)False

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

Sunspots usually come in pairs of north and south magnetic poles.

During a period of high solar activity, most sunspots lie near the Sun's _.

Solar neutrinos take a little more than eight hours to get from the Sun's core to Earth.

The temperature of the photosphere is about

The thickness of the photosphere is about 100 times the diameter of the Earth, and large sunspots are larger than our whole planet.

Which of these are NOT associated with the active Sun?

Granulation is the most obvious proof of solar convective energy transport.

Unlike the nuclear reactions in the Sun, everyday chemical reactions involve only the electromagnetic forces.

The critical temperature to initiate the proton- proton cycle in the cores of stars is

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

What do sunspots tell us about the Sun's rotation rate?

How are sunspots in the northern and southern hemispheres different?

Stellar spectra tell us that is the second most abundant element in the Sun.

Define the solar constant.

Nuclear _ _ explains the Sun's immense and sustained energy output.

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?

When we glimpse the chromosphere at the start and end of totality, its color is

The Solar Neutrino Problem is that we observe more neutrinos than predicted.

The solar corona is much cooler than the Sun's surface; hence, we must wait for a total solar eclipse to glimpse it with the naked eye.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Light and Matter: the Inner Workings of the Cosmos

Telescopes: the Tools of Astronomy

The Solar System: Interplanetary Matter and the Birth of the Planets

Earth and Its Moon: Our Cosmic Backyard

The Terrestrial Planets: a Study in Contrasts

The Jovian Planets: Giants of the Solar System

Moons, Rings, and Plutoids: Small Worlds Among Giants

Measuring the Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Star Formation in the Milky Way

Stellar Evolution: the Lives and Deaths of Stars

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Normal and Active Galaxies: Building Blocks of the Universe

Hubbles Law and Dark Matter: the Large-Scale Structure of the Cosmos

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

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Exam 10: The Sun: Our Parent Star

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

Sunspots usually come in pairs of north and south magnetic poles.

During a period of high solar activity, most sunspots lie near the Sun's _.

Solar neutrinos take a little more than eight hours to get from the Sun's core to Earth.

The temperature of the photosphere is about

The thickness of the photosphere is about 100 times the diameter of the Earth, and large sunspots are larger than our whole planet.

Which of these are NOT associated with the active Sun?

Granulation is the most obvious proof of solar convective energy transport.

Unlike the nuclear reactions in the Sun, everyday chemical reactions involve only the electromagnetic forces.

The critical temperature to initiate the proton- proton cycle in the cores of stars is

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

What do sunspots tell us about the Sun's rotation rate?

How are sunspots in the northern and southern hemispheres different?

Stellar spectra tell us that is the second most abundant element in the Sun.

Define the solar constant.

Nuclear _ _ explains the Sun's immense and sustained energy output.

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?

When we glimpse the chromosphere at the start and end of totality, its color is

The Solar Neutrino Problem is that we observe more neutrinos than predicted.

The solar corona is much cooler than the Sun's surface; hence, we must wait for a total solar eclipse to glimpse it with the naked eye.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Light and Matter: the Inner Workings of the Cosmos

Telescopes: the Tools of Astronomy

The Solar System: Interplanetary Matter and the Birth of the Planets

Earth and Its Moon: Our Cosmic Backyard

The Terrestrial Planets: a Study in Contrasts

The Jovian Planets: Giants of the Solar System

Moons, Rings, and Plutoids: Small Worlds Among Giants

Measuring the Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Star Formation in the Milky Way

Stellar Evolution: the Lives and Deaths of Stars

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Normal and Active Galaxies: Building Blocks of the Universe

Hubbles Law and Dark Matter: the Large-Scale Structure of the Cosmos

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

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