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energy moves through the sun's ____ by means of the rising of hot gas and falling of cooler gas
Most of the Sun's ultraviolet light is emitted from the narrow layer called the ____ where temperature increases with altitude
Rank these layers based on their distance from the Sun's center, from greatest to least.
corona, chromosphere, photosphere, convection zone, radiation zone, core
Rank the layers of the Sun based on their density, from highest to lowest.
core, radiation zone, convection zone, photosphere, chromosphere, corona
Rank the following layers of the Sun based on their temperature, from highest to lowest.
core, radiation zone, convection zone, photosphere
Rank the following layers of the Sun based on the pressure within them, from highest to lowest.
core, radiation zone, convective zone, photosphere
Which of the following layers of the Sun can be seen with some type of telescope?
corona, chromosphere, photosphere
What would happen if the fusion rate in the core of the Sun were increased but the core could not expand?
The Sun's core would start to heat up and the rate of fusion would increase even more.
As we move to greater and greater distances above the solar photosphere, the temperature in the Sun's atmosphere
first decreases and then increases
What is the single most important characteristic in determining the course of a star's evolution?
The Hertzsprung-Russell Diagram plots ________ against the spectral type or temperature.
luminosity or absolute magnitude
What are the two most important intrinsic properties used to classify stars?
luminosity and surface temperature
The "Solar Neutrino Problem" refers to the fact that astronomers
detect only a third of the number of neutrinos expected by theory
What is probably responsible for the INCREASE in temperature of the corona far from the Sun's surface?
the suns magnetism
If neutrinos can escape from the solar core within minutes, then how long does it take a photon to escape?
millions of years
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