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Geology Test 1
Suns and Stars
16
Geology
Undergraduate 2
09/22/2008

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Cards

Term
The Sun's __________ is a spectacular crown visible during solar eclipses.
Definition
Corona
Term
Which of the following types of radiation (light) from the Sun supplies the greatest amount of total energy to the Earth?
Definition
Visible
Term
Which element is the second most abundant in the Sun?
Definition
Helium
Term
High speed ions emitted by the sun, some of which reaches Earth
Definition
What is Solar Wind
Term
The Little Ice Age on Earth coincided with...
Definition
A prolonged disappearance of sunspots, diminishing solar wind, and cooling of the Earth's upper atmosphere.
Term
Thermonuclear reactions within the Sun's core include each of the following except...
Definition
Conversion of electrons to protons
Term
The maximum intensity of radiation emitted by a body shifts to shorter wavelengths as the body becomes hotter.
Definition
Wein's law states that...
Term
What causes Fraunhofer lines within the Sun's spectrum?
Definition
Photons of energy emitted from the Sun's surface interact with hydrogen in Sun's atmosphere, with certain wavelengths being absorbed.
Term
Occurs between the photosphere and corona.
Definition
The Sun's chromosphere...
Term
Energy is transferred from the Sun's core to it's surface by...
Definition
Both radiation and convection
Term
Which of the following is not associated with interactions between the solar wind and Earth?
Definition
Thermonuclear fusion
Term
Which of the following statements is false?
Definition
Weakening of Earth's magnetosphere results in decreased cosmic ray bombardment of the upper atmosphere and decrease in the production of carbon-14.
Term
Thermonuclear fusion in the cores of stars can only make the element iron in __________ stars.
Definition
Large and massive
Term
The future of our Sun billions of years from now will most likely be...
Definition
Evolve into a red giant, shed off its outer layers, and end up as a white drawf.
Term
Which of the following statements about galaxies is false?
Definition
The motions of galaxies are no longer affected by the Big Bang that occurred 13-15 billion years ago.
Term
True or False
The electromagnetic spectrum of a galaxy rapidly approaching Earth would be red shifted.
Definition
False
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