Exam 8: The Sun

Granulation is caused by convection currents just below the photosphere.

What causes granulation on the photosphere?

In order for nuclear fusion to occur, atomic nuclei must overcome the ____ by colliding violently.

Which of the natural forces bind atomic nuclei?

The _____ occurs when some of the energy in the convective motion of gas is converted into magnetic field energy.

The number of _______________ visible on the Sun varies in a cycle with a period of 11 years.

Magnetic fields on the Sun can be measured by observing the splitting of atomic spectral lines due to the __________ effect.

Sunspot numbers follow a seven-year cycle.

Explain the role of convection on the Sun's surface.

Why do sunspots occur darker than the rest of the Sun's surface?

When the Sun generates its own energy, it uses weak forces to bind together atomic nuclei.

A(n) ________ is an image of the Sun made using only light within a particular band of wavelengths.

The images produced by _______________ reveal streamers in the corona that follow magnetic lines of force in the Sun's magnetic field.

Nuclear fusion in the Sun is tremendously powerful.

When two arches in a magnetic field encounter each other, ____ can cause powerful eruptions called ____.