Astronomy 154 - Elementary Astronomy » Spring 2022 » Quiz 7
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Question #1
Which of these best describes the photosphere?
A.
The region of very hot very thin gases above the Sun's surface only visible during a solar eclipse.
B.
The interior region of the Sun in which energy is transferred outward primarily by radiation.
C.
The interior of the Sun where the energy of the Sun is produced.
D.
The disk of the Sun that we see.
E.
Particles which stream from the Sun and extend into space.
Question #2
What is a coronal mass ejection?
A.
light radiated by atoms and ions in the Earth's upper atmosphere, mostly in the polar regions.
B.
a process in which a high-energy ultraviolet photons are absorbed and the absorbed energy is radiated as lower-energy photons of visible light.
C.
the distortion of an image formed by a telescope due to differing focal lengths of the optical system.
D.
flamelike protrusions seen near the limb of the Sun and extending into the solar corona.
E.
an event in which billions of tons of gas from the Sun is suddenly blasted into space at high speeds.
Question #3
The primary nuclear reactions providing energy inside the Sun converts __________.
A.
helium into carbon
B.
helium into hydrogen
C.
carbon into oxygen
D.
hydrogen into helium
E.
hydrogen into carbon
Question #4
The relatively dark blotches on the surface of the sun are called ____________.
A.
black holes
B.
granulations
C.
sunspots
D.
prominences
E.
filaments
Question #5
Which of the following describes the gases in the Sun's corona?
A.
extremely hot and extremely thin
B.
extremely cool and extremely dense
C.
extremely cool and extremely thin
D.
extremely hot and extremely dense
Question #6
What is responsible for the mottled appearance of the Sun's surface known as granulation?
A.
magnetic fields
B.
convection currents
C.
solar flares
D.
gravitational tides
E.
coronal holes
Question #7
Last solar maximum occurred in 2013. When should we expect the very next solar maximum most likely to happen?
A.
2034
B.
2024
C.
2023
D.
2043
Question #8
Sunspots appear _____ because they are _____ than their surrounding.
A.
dark, cooler
B.
bright, cooler
C.
bright, warmer
D.
dark, warmer
Question #9
Energy transport inside the Sun, going outward, is :
A.
convection, core, radiation
B.
core, radiation, convection
C.
radiation, core, convection
D.
convection, radiation, core
E.
radiation, convection, core
F.
core, convection, radiation
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