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Quiz 5 - Sarah Miller
Our Solar System (ESCI 420)
University of New Hampshire
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Quiz 5
1. Which number best represents the percent mass of the Solar System contained by the
Sun? a. 10 b. 50 c. 99 d. 100
2. What region of the Sun is considered its surface?
a. Corona b. Chromosphere c. Photosphere d. Convective Zone e. Radiative Zone
3. Which is not the result of a solar storm?
a. aurora on Earth b. magnetic field lines c. coronal mass ejections d. solar flares
4. Which best defines the solar wind?
a. An expanding low density plasma moving outward from the Sun b. Convective currents in the Chromosphere that create zonal jets in the solar mid- latitudes c. Currents focused where magnetic field lines emerge from the solar interior d. Random ion motion in the Radiative Zone
5. The temperature of the Sun's Photosphere is approximately:
a. 5500 K b. 50,000 K c. 2 million K d. 15 million K
6. The 'solar cycle' is:
a. The amount of time it takes the Sun to complete a full rotation on its axis b. A roughly 11-year period of sunspot variation in location and intensity c. Periodicity associated with known comets entering the inner Solar System d. A 22-year cycle in which the Sun's magnetic poles flip
7. The primary hazard geomagnetic storms pose to humans as a result of solar activity is to:
a. skin and eyes due to intense radiation at the surface. b. electrical and communication systems. c. intensifying weather patterns and inducing extreme precipitation. d. ecosystem disruptions due to effects on migratory animals that rely on magnetic navigation.
8. Roughly, what is the projected lifetime of the Sun?
a. 5 billion years b. 7 billion years c. 12 billion years d. 20 billion years
9. Which are the key tenants of the Faint Young Sun paradox?
Quiz 5
a. The early Sun was dimmer than now, but yet the Early Earth was still warm enough to have liquid water. b. The early T-Tauri Sun was more energetic than now, yet the early Earth was a frozen ice world. c. The early Sun was brighter than it is now, yet Earth was still habitable for simple small organisms. d. The early Sun was nearly extinguished, and yet the early Earth escaped a permanent snowball existence.
10 of the following is not a consideration when modeling the Sun's interior?
a. The Sun's total mass b. The Sun's overall luminosity c. The Sun's average density d. The Sun's surface temperature e. All of the above contribute to modeling the Sun's interior.
Quiz 5 - Sarah Miller
Course: Our Solar System (ESCI 420)
University: University of New Hampshire
