Ch. 24 Earth Science

The sun's surface has a grainy texture produced by numerous bright markings called __

The outermost portion of the solar atmosphere is the ____

Which type of spectrum can be produced by a solid, liquid, or gas?

Sunspots appear dark because they are ___

Which type of spectrum is associated with the radiation of most stars?

What feature is labeled A in the figure?

___ refers to the arrangement of electromagnetic waves according to their λ and frequencies

The light from a source that is moving away from an observer appears ____ than it actually is

The source of the sun's energy is ___

During period of high solar activity, huge cloudlike structures called _ appear as great arches

Photons are associated with the _____ theory of light

Which color has the most energetic photons

What are the most explosive events that occur on the sun?

The thin red rim seen around the sun during a total solar eclipse is called the ___

What color has the longest wavelength?

The energy of a photon is related to its ___

The sun's surface is made up mostly of ____

What effect do solar flares have on Earth?

The speed of light is ____ kilometers per second

The outermost layer of the sun is called the ___

Gamma rays, X-rays, visible light, and radio waves are all types of ____

During nuclear fusion, energy is released because some matter is actually converted to __

Using the Doppler effect, astronomers can determine a star's ____

The change in wavelength that occurs when an object moves toward or away from a source

What was the first space telescope built by NASA?

By observing sunspots, Galileo concluded that the sun ___

Streams of electrons and protons that shoot out from the sun's corona make up the solar __

The product of nuclear fusion is ___

What does a prism do?

What solar features are labeled C in the figure?

Nuclear fusion takes place in the sun's _____

The part of the sun lies directly above the visible "surface" of the sun?

What information does a star's spectrum offer about the star?

The sun can continue to exist in its present stable state for about another ____

Which of the following is NOT a form of electromagnetic radiation?

An emission spectrum is produced by a(n) ___ gas under ____ pressure

Large Doppler shifts indicate ___

The fact that light can exert a pressure on matter suggests that it is made of particle called 

If an light source is moving away from an object its waves are ____

What will happen to an object's wavelength as the object moves toward you?

The layer of the sun that radiates most of the light that reaches Earth is the ___