HCS: Space and Earth Science Chapter 4 Review

Which of the following is NOT a part of the solar atmosphere?

The radiated energy of the sun travels mostly in the form of electro-magnetic waves.

The moon appears to be as large as the sun because it is much closer to the earth.

the element that was discovered in the sun before it was found on Earth

In Genesis 1:16 the sun is called the "____________ to rule the day".

the distance from the crest of one wave to the crest of the next

What is the lower layer of the sun's atmosphere?

a particularly violent event also known as a coronal mass ejection

What is the instrument used by astronomers to produce an artificial solar eclipse when observing the sun's atmosphere?

The layer of ionized particles in the earth's atmosphere caused by solar wind is called what?

More than 200 of the naturally occurring elements have been identified in the sun.

Solar wind is composed mostly of what high-speed particles?

Which of the following does NOT belong with the others?

seething convective cells on the sun's surface are called

the most abundant element in the sun

the outer portion of a sunspot

The temperature of the sunspots is _______ than that of the regions on the photosphere that surround them.

On the average, a maximum number of sunspots occurs every ____ years.

Nearly all of the matter in the solar system is in the _________ state.

Severe solar storms that can disrupt telecommunications on Earth are called...

One advantage of solar energy is that it is diffuse.

What is the main use of solar energy at this time?

In what part of the sun are thermonuclear reactions believed to occur?

A complete magnetic sunspot cycle occurs approximately every ________ years.

What are semiconductor devices used to produce electricity from sunlight?

Compared with the temperature of the photosphere, the temperature of the corona is

A small percentage of the sun's energy is in the form of neutral subatomic particles called

Which electromagnetic wavelength can the human eye detect?

The sun is located in the center of the Milky Way galaxy.

the astronomer's tool that identifies chemical elements in an incandescent light source

the sun is composed mostly of

the visible surface of the sun

Which form of electromagnetic radiation has the shortest wavelength?

Movement of sunspots indicates that the sun is _______ on its axis.

the diameter of the sun

A diffraction grating used in spectroscopes produces a spectrum much like a prism.

the dark areas on the surface of the sun

Photographs of knots of dusts and gas in the Eagle Nebula prove that new stars are currently being formed.

Neutrinos travel at the speed of sound.

The fact that the sun is losing matter over time is evidence that the heavens are "waxing old like a garment".

the darker inner portion of a sunspot

Rainbows refract and reflect light through raindrops, showing the entire range of colors in the visible EM spectrum.

What are pointed jets on the chromosphere?

the distance from the sun to the earth

Sunspots affect communications by causing changes in the ionosphere and may affect global climate.

What is the region within the sun in which energy travels primarily as electromagnetic waves?

Each element has its own pattern of spectral lines as seen through a spectroscope.

In what area of the sun does hot plasma rise to the surface, cools, and descends into the sun's interior again?

Improved range of radio broadcasts is caused by more ionizing in the earth's atmosphere.

What is the outer layer of the sun's atmosphere called?

What are the streams of plasma that rise up into and descend from the sun's corona?

the sun's surface exists in what state of matter

Sunspots usually last longer that several hours.