Exam 10: The Sun: Our Parent Star

The average density of the Sun is most similar to which object?

The _ - year solar cycle is characterized by a variation in the number of sunspots through a reversal of the magnetic polarity of the Sun as a whole.

The solution to the solar neutrino problem was

The only particle we can directly observe coming out of the Sun's core is the

The granules in the photosphere are about as big as Texas, or around 1,000 km across.

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

In the proton- proton cycle, two positrons are produced. What more familiar particles are they similar to, and how do they differ?

While the photosphere produces chiefly visible light, most coronal energy is in the form of

Why are different spectral lines, such as helium, more visible in the corona than in the Sun's normal absorption spectrum?

The transport subsurface material from the Sun's equator to its poles and back at a depth far below the convection zone.

The gamma rays created in the Sun's core move freely through the

While observing the Sun, you note a large number of sunspots. What can you conclude?

The major product of the fusion of 4 protons in the Sun's core is a(n) nucleus.

What other solar system body has an average density similar to the Sun's? Why?

The most striking example of solar variability was the

Sunspots are dark splotches on the Sun. Which statement is true?

The Sun's magnetic field is very weak compared to Earth's.

In the proton- proton chain, helium atoms are fused into hydrogen.

Although protons repel each other at a distance, they will actually bind if they come close enough together.

Describe the temperature change in the transition zone.