Exam 14: Our Starthe Sun

The image below taken at visible wavelengths shows a section of the Sun with sunspots visible. Which of the labeled regions is the lowest temperature?

If you hold on to one end of a metal spoon while placing the other end in a pot of boiling water, you will burn your hand. This is an example of energy being transported by:

By studying how the surface of the Sun vibrates like a struck bell we can determine its:

In the radiative zone inside the Sun, photons are transported from the core to the convective zone in a matter of seconds.

Which of the following layers of the Sun makes up the majority of its interior?

The net effect of the proton-proton chain is that four hydrogen nuclei are converted to one helium nucleus and _________ are released.

The darkest part of a sunspot is called the:

If the core of the Sun were hotter than it is now, how would the Sun's energy production change?

If a coronal mass ejection occurred on the Sun and ejected particles toward the Earth that traveled at the speed of 1,000 km/s, how long would it take them to reach Earth?

What keeps the gas in the Sun's corona from flying away from the Sun?

Some restaurants place food under infrared heat lamps so that it stays warm after it has been cooked. This is an example of energy being transported by:

When solar activity is very high, the Earth's atmosphere will:

Which of the layers of the Sun is located the furthest from the center of the Sun?

At the center of the Sun, the temperature is roughly 15 million K.

In our Sun, hydrostatic equilibrium exists only in the core, where energy production via fusion can balance gravity.

If the Sun converts 5*10¹¹ kg of H to He per second and 10 percent of the Sun's total mass is available for nuclear burning, how long might we expect the Sun to live?

We can determine how the density changes with radius in the Sun using:

The Maunder Minimum was a 60-year period when:

The detection of solar neutrinos confirms that:

Nuclei of atoms are held together by gravity.