Exam 7: The Sun

____ occur(s) because photons we receive from the edge of the solar disk are emitted further from the base of the photosphere than the photons we receive from the center of the solar disk.

If a sunspot has a temperature of 4,500 K and the surrounding solar surface has a temperature of 5,800 K, how many times brighter is the surface compared to the sunspot?

Solar prominences have twisted and looped shapes because of the solar magnetic field.

A ____ is believed to occur when energy, stored in a twist in the solar magnetic field above a sunspot, is suddenly released.

Which of the following is suggested as the best explanation of the missing solar neutrinos?

Discuss a theory that explains how the corona is heated.

Helioseismology shows that deeper layers of gas in the sun rotate at different speeds. When different parts of an object rotate at different rates it is called

Most of the visible light from the sun originates in the photosphere.

In the proton-proton chain

Sunspots are dark because

Most of the energy emitted by the sun is generated in the

The sunspot cycle affects

One sees differences in ________depending on the time in the sunspot cycle.

Helioseismology is the study of the differential rotation and magnetic field of the sun.

Why do the lines in a flash spectrum change as the edge of the moon moves across the edge of the sun?

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

Why is the temperature at the region of a sunspot cooler than the photosphere?

What is the Babcock model?

How does the sun's magnetic cycle affect the number, location, and polarity of sunspots?

What effects does solar activity have on Earth?