Exam 7: The Sun

Fusion is promoted in the core of the Sun by the _______ there.

The above picture shows the Sun's change in temperature with elevation into the Sun's atmospheric layers. The region from 10,000-70,000 K is known as the ____________.

Spicules occur in the _______________ atmospheric layer of the Sun.

Modern astronomers suspect the corona is heated by

Lithium has less binding energy than _____________, thus the neutrons and protons are easier to unbind from the nucleus.

List and explain the four fundamental forces in nature.

The strong force is the force that

A recent sunspot maximum occurred in 2013. What is the year of the sunspot maximum that immediately follows the 2013 maximum if the solar cycle continues?

The above image shows a prominence mostly in the ____________ atmospheric layer of the Sun. Because of the far-ultraviolet (FUV) image, we know the _____________ layer of the Sun's atmosphere is shown.

A(n) ____________________ is a subatomic particle produced in nuclear fusion that can travel through the Sun and escape to space without interacting with any particles in the Sun.

Differential rotation of the Sun is

Diagram 7-1 Diagram 7-1 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?

Streamers above sunspots suggest ___________.

a) Draw the p-p fusion chain that generates helium from hydrogen, labeling each of the four hydrogen atoms needed in the reaction. Label each product formed or particle generated by its common name. b) Discuss how many particles and products are generated in one fusion chain.

Spicules

Astronomers can use ________ to measure magnetic fields on the Sun.

What effects does solar activity have on Earth?

Why does a filtergram reveal details in higher layers of the solar atmosphere?

Neutrinos are created in reactions in the _______ of the Sun.

The multicolored ring in the image above of Earth is a/an ___________.