The United States consumes 2.5*1019 J of energy each year. A typical solar flare releases 5.0*1024 J of energy. How many years could we run the United States on the energy released by this solar flare if all of the released energy could be used?

A) 5*10-6 years B) 200,000 years C) 1.25*1044 years D) about 12 years E) 500 years A) 5*10-6 years B) 200,000 years C) 1.25*1044 years D) about 12 years E) 500 years

Exam 7: The Sun

The United States consumes 2.510¹⁹ J of energy each year. A typical solar flare releases 5.010²⁴ J of energy. How many years could we run the United States on the energy released by this solar flare if all of the released energy could be used?

(Multiple Choice)

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Question 21

Solar flares have no known effect on Earth.

(True/False)

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Question 22

Initially, scientists detected lower than the expected number of neutrinos from the sun.

(True/False)

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Question 23

Diagram 7-1 -Diagram 7-1 shows a plot of the temperature of the sun as a function of distance above the bottom of the photosphere. What is the temperature of the sun at a distance of 2,000 km?

(Multiple Choice)

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Question 24

The proton-proton chain

(Multiple Choice)

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Question 25

As the moon covers the solar disk during a solar eclipse, a flash spectrum of the sun's chromosphere can be recorded. This flash spectrum reveals an emission spectrum and provides information on the properties of the chromosphere. As the moon moves from the inner chromosphere to the outer chromosphere, the spectral lines present in the flash spectrum change. What is going on in the chromosphere that produces the changes in the flash spectrum?

(Multiple Choice)

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Question 26

The sun has a continuous visual spectrum with dark absorption lines. The continuous spectrum is produced by the layer while the dark absorption lines are produced by layers.

(Multiple Choice)

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Question 27

There is only one form of neutrino.

(True/False)

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Question 28

Sunspots are known to be magnetic phenomena because

(Multiple Choice)

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Question 29

A(n) ____________________ is a subatomic particle produced in nuclear fusion that can travel through the sun and escape to space without interacting with any particles in the sun.

(Short Answer)

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Question 30

A filtergram is a photograph of the sun's surface made

(Multiple Choice)

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Question 31

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

(Multiple Choice)

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Question 32

The ____________________ of the sun is composed of ionized gas and produces a continuous spectrum with a superimposed emission spectrum.

(Short Answer)

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Question 33

What evidence do we have that the chromosphere is hotter than the photosphere?

(Not Answered)

Question 34

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Granulation is caused by rising currents of hot gas below the photosphere.

(True/False)

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Question 35

The dynamo effect is believed to produce the ____________________ of the sun.

(Short Answer)

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Question 36

Sunspots are hotter than the photosphere.

(True/False)

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Question 37

The rotation of the sun's photosphere is

(Multiple Choice)

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Question 38

The ____ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.

(Multiple Choice)

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Question 39

The sun's magnetic field is evident in the looped shapes of

(Multiple Choice)

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Question 40

Showing 21 - 40 of 101

The United States consumes 2.510¹⁹ J of energy each year. A typical solar flare releases 5.010²⁴ J of energy. How many years could we run the United States on the energy released by this solar flare if all of the released energy could be used?

Solar flares have no known effect on Earth.

Initially, scientists detected lower than the expected number of neutrinos from the sun.

Diagram 7-1 -Diagram 7-1 shows a plot of the temperature of the sun as a function of distance above the bottom of the photosphere. What is the temperature of the sun at a distance of 2,000 km?

The proton-proton chain

The sun has a continuous visual spectrum with dark absorption lines. The continuous spectrum is produced by the layer while the dark absorption lines are produced by layers.

There is only one form of neutrino.

Sunspots are known to be magnetic phenomena because

A(n) ____________________ is a subatomic particle produced in nuclear fusion that can travel through the sun and escape to space without interacting with any particles in the sun.

A filtergram is a photograph of the sun's surface made

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

The ____________________ of the sun is composed of ionized gas and produces a continuous spectrum with a superimposed emission spectrum.

What evidence do we have that the chromosphere is hotter than the photosphere?

Granulation is caused by rising currents of hot gas below the photosphere.

The dynamo effect is believed to produce the ____________________ of the sun.

Sunspots are hotter than the photosphere.

The rotation of the sun's photosphere is

The ____ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.

The sun's magnetic field is evident in the looped shapes of

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

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

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Exam 7: The Sun

The United States consumes 2.5*1019 J of energy each year. A typical solar flare releases 5.0*1024 J of energy. How many years could we run the United States on the energy released by this solar flare if all of the released energy could be used?

Solar flares have no known effect on Earth.

Initially, scientists detected lower than the expected number of neutrinos from the sun.

Diagram 7-1 -Diagram 7-1 shows a plot of the temperature of the sun as a function of distance above the bottom of the photosphere. What is the temperature of the sun at a distance of 2,000 km?

The proton-proton chain

The sun has a continuous visual spectrum with dark absorption lines. The continuous spectrum is produced by the ____________ layer while the dark absorption lines are produced by ____________layers.

There is only one form of neutrino.

Sunspots are known to be magnetic phenomena because

A(n) ____________________ is a subatomic particle produced in nuclear fusion that can travel through the sun and escape to space without interacting with any particles in the sun.

A filtergram is a photograph of the sun's surface made

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

The ____________________ of the sun is composed of ionized gas and produces a continuous spectrum with a superimposed emission spectrum.

What evidence do we have that the chromosphere is hotter than the photosphere?

Granulation is caused by rising currents of hot gas below the photosphere.

The dynamo effect is believed to produce the ____________________ of the sun.

Sunspots are hotter than the photosphere.

The rotation of the sun's photosphere is

The ____ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.

The sun's magnetic field is evident in the looped shapes of

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

The Origin of the Solar System

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

The United States consumes 2.510¹⁹ J of energy each year. A typical solar flare releases 5.010²⁴ J of energy. How many years could we run the United States on the energy released by this solar flare if all of the released energy could be used?

The sun has a continuous visual spectrum with dark absorption lines. The continuous spectrum is produced by the layer while the dark absorption lines are produced by layers.