Study Guide Ch7

Chapter 7- The Sun

Study Guide

Answer is slashed threw its not the right one if in red it might be the answer.

 Question 1
Diagram 7-1 shows a plot of the temperature of the sun as a function of distance above the bottom of the photosphere. At what distance above the bottom of the photosphere is the temperature of the sun the smallest?
500 km
Diagram 7-1 shows a plot of the temperature of the sun as a function of distance above the bottom of the photosphere. At what distance above the bottom of the photosphere does the temperature of the sun change the most rapidly with distance?
2,300 km
The diagram in Figure 7-1 above 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?
9,000 K

Question 2
Why is the temperature at the region of a sunspot cooler than the photosphere?
Powerful magnetic fields inhibit the convective flow of the gases of the photosphere downward allowing them to cool for longer than would normally be permitted.

Question 3
What is the explanation for the pattern of granulation seen on the visible surface of the Sun?
The granules are the tops of hot gas that have risen from the Sun's convective zone.

Question 4
The chromosphere of the sun
is hotter than the photosphere.

Question 5
The ____ occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field.
dynamo effect

Question 6
Sunspots are known to be magnetic phenomena because
the Zeeman effect is observed in sunspots.

Question 7
Most of the visible light we see coming from the sun originates from the
chromosphere.

Question 8
The corona and chromosphere of the sun are believed to be heated by
high energy particles being accelerated by the sun's magnetic field.

Question 9
The ____ coincides with the period known as the "little ice age" of Europe and North America. This provides one piece of evidence that suggests a link between solar activity and the amount of solar energy Earth receives.
Maunder sunspot minimum
Babcock sunspot model
coronal hole
Coulomb barrier
weak solar force

Question 10
One sees differences in ________ depending on the time in the sunspot cycle..
I. the latitude at which most sunspots occur
II. the number of sunspots that are visible
III. the rotation rate of the sun's equator
IV. the magnetic polarity of the sunspot pair members in a hemisphere
I & II
I & IV
II & III
I, II & III
I, II & IV

Question 11
A filtergram is a photograph of the sun's surface made
with only those photons emitted in a specific spectral line.

Question 12
Differential rotation of the sun is
the equatorial regions of the sun rotating more rapidly than the polar regions.

Question 13
A recent sunspot maximum occurred in 2001. What is the year of the sunspot maximum that immediately follows the 2001 maximum if the solar cycle continues?
2012
Question 14
A ____ is believed to occur when energy, stored in a twist in the solar magnetic field above a sunspot, is suddenly released.
solar flare

Question 15
The ____ is (are) the hot gases that are the moving extension of the sun's corona.
solar wind

Question 16
The sun's magnetic field is evident in the looped shapes of
prominences.

Question 17

The rotation of the Sun’s photosphere is
fastest at the equator, slower at mid-latitudes, and slowest near the poles.
slowest at the equator, faster at mid-latitudes, and fastest near the poles.
fastest at the equator, slowest at mid-latitudes and equal at the poles which travel at the same speed.
the same regardless of latitude.

Question 18
In the proton-proton chain
energy is produced in the form of gamma rays and the velocity of the created nuclei.

Question 20
 Granulation is caused by
rising and sink gases below the photosphere.