Question 1

Suppose a large flare is detected optically. How long until radio interference arrives?

Accepted Answer

A)  simultaneously
B)  8.5 minutes later
C)  about 12 hours
D)  about 4 days
E)  no relation between the twoF) A) and D)
G) C) and E)

Question 2

In the proton-proton cycle, the helium atom and neutrino have less mass than the originalhydrogen. What happens to the "lost" mass?

Accepted Answer

A)  It is recycled back into hydrogen.
B)  It is ejected into space.
C)  It is converted to energy.
D)  It is transformed into electrons.
E)  Conservation of mass dictates no mass can be lost.F) A) and B)
G) A) and C)

Question 3

The chromosphere is red because it is hot enough to ________ hydrogen atoms.

Accepted Answer

The answer of The chromosphere is red because it is...

Question 4

A solar flare creates a radio disturbance on Earth a few minutes after going off and againseveral days later. Explain.

Accepted Answer

A flare will give off intense X-rays and...

Question 5

Solar activity cannot disrupt communications on Earth.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

We know the Sun rotates differentially by observing sunspots; as with Jupiter the solarequator rotates the fastest.

Accepted Answer

A) True 
 B)False

Question 8

The energy of the Sun starts as radiation, but is actually transported to its surface byconvection, where it is radiated off into space at last.

Accepted Answer

A) True 
 B)False

Question 9

When the chromosphere can be seen during a solar eclipse, it appears:

Accepted Answer

A)  invisible.
B)  violet.
C)  blue.
D)  yellow.
E)  red.F) B) and D)
G) C) and D)

Question 10

As the Sun rotates, an individual sunspot can be tracked across its face. From eastern towestern limb, this takes about:

Accepted Answer

A)  12 hours.
B)  a week.
C)  2 weeks.
D)  a month.
E)  5.5 years.F) A) and B)
G) A) and C)

Question 11

How is the Sun's luminosity measured?

Accepted Answer

A detector is used to measure the energy...

Question 12

In contrast to the photosphere's continuum, the spectrum of the chromosphere is dominated by________ lines.

Accepted Answer

The answer of In contrast to the photosphere's continuum, the...

Question 13

Studies by the Global Oscillations Network Group, along with satellite observations,indicate:

Accepted Answer

A)  that the standard solar model requires substantial modification.
B)  that all stars show the same kind of vibrations that our Sun does.
C)  that there is an unknown energy transport mechanism in the Sun.
D)  that there is less convection in the Sun than predicted by the standard solar model.
E)  that the standard solar model accurately models the observed solar vibrations.F) All of the above
G) C) and E)

Question 14

Energy produced in the solar core is transferred by ________ until it reaches a point about500,000 km from the center.

Accepted Answer

The answer of Energy produced in the solar core is...

Question 15

The Sun's mass and volume are over a million times that of our Earth.

Accepted Answer

A) True 
 B)False

Question 16

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.F) None of the above
G) A) and E)

Question 17

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.F) B) and D)
G) A) and B)

Question 18

The above diagram indicates that:

Accepted Answer

A)  the Sun is most dense somewhere between its surface and its core.
B)  the Sun is least dense somewhere between its surface and its core.
C)  the Sun is more dense at its surface than at its core.
D)  the Sun is more dense at its core than at its surface.
E)  the Sun has about the same density throughout its interior.F) A) and B)
G) B) and E)

Exam 16: The Sun: Our Parent Star

Studies by the Global Oscillations Network Group, along with satellite observations,indicate:

Correct Answer
verified

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

Correct Answer
verified

Sunspots:

Correct Answer
verified

A solar flare creates a radio disturbance on Earth a few minutes after going off and againseveral days later. Explain.

Correct Answer
verified
A flare will give off intense X-rays and...
View Answer

In the proton-proton cycle, the helium atom and neutrino have less mass than the originalhydrogen. What happens to the "lost" mass?

Correct Answer
verified

The above diagram indicates that:

Correct Answer
verified

We know the Sun rotates differentially by observing sunspots; as with Jupiter the solarequator rotates the fastest.

Correct Answer
verified

The energy of the Sun starts as radiation, but is actually transported to its surface byconvection, where it is radiated off into space at last.

Correct Answer
verified

As the Sun rotates, an individual sunspot can be tracked across its face. From eastern towestern limb, this takes about:

Correct Answer
verified

The Sun's mass and volume are over a million times that of our Earth.

Correct Answer
verified

How is the Sun's luminosity measured?

Correct Answer
verified
A detector is used to measure the energy...
View Answer

Solar activity cannot disrupt communications on Earth.

Correct Answer
verified

The chromosphere is red because it is hot enough to ________ hydrogen atoms.

Correct Answer
verified

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

Correct Answer
verified

Energy produced in the solar core is transferred by ________ until it reaches a point about500,000 km from the center.

Correct Answer
verified

In contrast to the photosphere's continuum, the spectrum of the chromosphere is dominated by________ lines.

Correct Answer
verified

When the chromosphere can be seen during a solar eclipse, it appears:

Correct Answer
verified

Suppose a large flare is detected optically. How long until radio interference arrives?

Correct Answer
verified

Exam 16: The Sun: Our Parent Star

Studies by the Global Oscillations Network Group, along with satellite observations,indicate:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Sunspots:

Correct AnswerverifiedShow Answer

A solar flare creates a radio disturbance on Earth a few minutes after going off and againseveral days later. Explain.

Correct AnswerverifiedA flare will give off intense X-rays and...View AnswerShow Answer

In the proton-proton cycle, the helium atom and neutrino have less mass than the originalhydrogen. What happens to the "lost" mass?

Correct AnswerverifiedShow Answer

The above diagram indicates that:

Correct AnswerverifiedShow Answer

We know the Sun rotates differentially by observing sunspots; as with Jupiter the solarequator rotates the fastest.

Correct AnswerverifiedShow Answer

The energy of the Sun starts as radiation, but is actually transported to its surface byconvection, where it is radiated off into space at last.

Correct AnswerverifiedShow Answer

As the Sun rotates, an individual sunspot can be tracked across its face. From eastern towestern limb, this takes about:

Correct AnswerverifiedShow Answer

The Sun's mass and volume are over a million times that of our Earth.

Correct AnswerverifiedShow Answer

How is the Sun's luminosity measured?

Correct AnswerverifiedA detector is used to measure the energy...View AnswerShow Answer

Solar activity cannot disrupt communications on Earth.

Correct AnswerverifiedShow Answer

The chromosphere is red because it is hot enough to ________ hydrogen atoms.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Energy produced in the solar core is transferred by ________ until it reaches a point about500,000 km from the center.

Correct AnswerverifiedShow Answer

In contrast to the photosphere's continuum, the spectrum of the chromosphere is dominated by________ lines.

Correct AnswerverifiedShow Answer

When the chromosphere can be seen during a solar eclipse, it appears:

Correct AnswerverifiedShow Answer

Suppose a large flare is detected optically. How long until radio interference arrives?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
A flare will give off intense X-rays and...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified
A detector is used to measure the energy...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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