Exam 10: The Sun: Our Parent Star

The Maunder Minimum refers to a period of sustained solar _ from 1645 until about 1715.

The current sunspot cycle is the most active in a century.

In the proton- proton cycle, the positron is

From inside out, which is in the correct order for the structure of the Sun?

Although sunspots are cooler areas in the photosphere, when they increase in number that tells us the Sun is becoming more active.

The Sun is actually more luminous at sunspot minimum than at maximum.

During a period of high solar activity, the corona

At its current rate of consuming hydrogen, the Sun can stably shine for .

Which is the net result of the proton- proton chain?

The Sun's average density is about the same at Jupiter's, suggesting a similar composition.

Apply Wein's law to explain the corona's main energy release.

The pattern of hot convective cells rising in the photosphere is called

The outward pressure of hot gas in the Sun

Why is it hard to observe the chromosphere?

Describe the changes in the Sun from beginning to end of a sunspot cycle.

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

Flares and prominences are more numerous during _ .

The blows out of the coronal holes.

The sunspot cycle averages about 11 months.

The chromosphere is faint because of its low density.