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Why are sun spots a different color than the rest of the Sun? Choose one answer.
a. Sun spots are made of a different material than the rest of the Sun.
b. Sun spots emit no light.
c. Sound waves near the surface of the Sun inhibit convection, thus keeps the sun spots cooler
d. Strong magnetic field inhibit convection, thus keep the sun spot cooler. |
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In the image shown, what feature is associated with 'C'? Choose one answer.
a. A Coronal Mass Ejection
b. A Solar Streamer
c. A Solar Flare
d. A Spicule
e. A Hedgerow Prominence |
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How was the solar neutrino problem resolved? Choose one answer.
a. The Standard Model of Particle Physics was modified to inlude the fact that neutrinos can change flavors.
b. The standard model of the Sun was modified.
c. There was no solar neutrino problem.
d. The detectors were fixed so they measured all of the electron neutrinos from
the Sun. |
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What is the key signature of solar flares? Choose one answer.
a. Burst of X-rays and radio waves.
b. Burst of visible light and X-rays.
c. Burst of radio waves and visible light.
d. Burst of radio waves and protons.
e. Burst of visible light and protons.
f. Burst of X-rays and protons. |
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| There are more sunspots during solar maximum. T/F |
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When discussing the interaction between the solar wind and the Earth’s magnetic field, the magnetosheath refers to
Choose one answer.
a. The region where the solar wind begins to speed up (from subsonic to supersonic) and bend around earth’s magnetic field
b. The night side elongation of the magnetosphere.
c. The region where the solar wind begins to slow down (from supersonic to subsonic) and bend around earth’s magnetic field
d. Region of subsonic flow of the solar wind after the bow shock
e. The region where the outward pressure from Earth’s magnetic field balances the solar wind pressure |
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Which of the following best describes the differential rotation of the Sun?
Choose one answer.
a. The Sun rotates fastest at +/- 30 degrees latitude.
b. The equator rotates faster than the poles.
c. The poles rotate faster than the equator.
d. All parts of the Sun rotate at the same rate. |
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Which of the following are true about the Solar core. Choose at least one answer.
a. Gamma rays produced by fusion reach the Earth in 8 minutes at the speed of light.
b. Energy in the core is produced from the chain reaction 235U + neutron - >140Cs + 93Rb + 3 neutrons
c. Energy escapes the core via the slow process of radiative diffusion.
d. It contains 90% of the Sun's mass.
e. It is 20% of the Sun's radius in diameter.
f. It is composed entirely of a dense plasma with no neutral atoms. |
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In lab, you looked for nodes on a vibrating string. What were these nodes an indication of? Choose one answer.
a. A standing wave.
b. A traveling wave.
c. An oscillating wave.
d. A vibrating wave. |
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Which of the following descriptions apply to the Chromosphere? Choose at least one answer.
a. A region where the temperature is 6,000 to 20,000 K
b. The region defining the influence of the Sun through the solar wind, ending with the interstellar medium.
c. The thin layer above the photosphere that contains long, thin structures of luminous gas called "Spicules".
d. The coldest regions of the sun from which visible light is emitted.
e. The hot (~2 million degrees) upper atmosphere of the sun.
f. A 6000K bright region of the atmosphere characterized by convective 'granules'. |
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What is the Doppler Shift? Choose one answer.
a. A change in the type of neutrino detected from the Sun caused by a subtle interaction with matter. More interaction reduces the number of detected neutrinos, while less interaction produces an increase.
b. A shift in the wavelength (color) of photons produced by the Sun as a function of temperature. Higher temperatures produce a blue shift, while lower temperatures produce a red shift.
c. The bending of sound waves in the solar convection zone as density, temperature, pressure and composition change with depth.
d. A shift in the wavelength (color) of light from movement of a source relative to the observer. Movement away from the observer produces a red shift, and movement towards the observer produces a blue shift.
e. A change in the intensity of light from movement of a source relative to the observer. Movement away from the observer produces a decrease in intensity, and movement towards the observer produces an increase. |
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The Zeeman effect allows scientists to use light from the Sun to measure... Choose one answer.
a. temperature.
b. magnetic field.
c. oscillation frequency.
d. motion towards or away from the observer.
e. electric field. |
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Which solar region emits H-alpha? Choose one answer.
a. Chromosphere
b. Convective zone
c. Photosphere
d. Heliosphere
e. Hydrosphere
f. Alphasphere
g. Inner Core
h. Radiative Zone
i. Corona Incorrect
j. Sunspots Incorrect |
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Which of these descriptions applies to the Photosphere? Choose at least one answer.
a. The coldest region of the sun from which visible light is emitted.
b. The outermost luminous region of the sun that remains visible during a solar eclipse.
c. The region defining the influence of the Sun through the solar wind, ending with the interstellar medium.
d. The hot (~2 million degrees) upper atmosphere of the sun.
e. The thinnest (300 km) layer of the solar atmosphere.
f. A hot 20000K region heated by sound waves that is bright in H-alpha emission
and characterized by Spicules. |
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What was the solar neutrino problem? Choose one answer.
a. There was never a solar neutrino problem
b. We observed more solar electron neutrinos at detectors on earth compared to the amount predicted by solar fusion models.
c. The earth’s atmosphere absorbed all of the solar neutrinos.
d. We observed fewer solar electron neutrinos at detectors on earth compared to the amount predicted by solar fusion models.
e. We observed no solar electron neutrinos at detectors on earth, which disagreed with solar fusion models. |
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In the figure show, the black spot labelled by the letter 'C' is an example of:
Choose one answer.
a. Granules
b. Zeeman Cells
c. Coronal Holes
d. Sunspots
e. Doppler Cells
f. Spicules |
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In lab, you observed the effect of a magnetic field on a beam of electrons. How did the electrons move when the beam was pointed perpendicular to the magnetic field? Choose one answer.
a. In an ellipse (not a circle).
b. In a straight line.
c. In a circle.
d. In a helix. |
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Which of the following descriptions best apply to the corona? Choose at least one answer.
a. The thin layer above the photosphere that contains long, thin structures of luminous gas called !Spicules.
b. An ionized region of the solar atmosphere that produces only individual plasma emission lines.
c. The hot (~1-2 million degrees) upper atmosphere of the sun.
d. The thinnest (300 km) region of the solar atmosphere from which most visible light is emitted.
e. The coldest regions of the sun from which visible light is emitted.
f. The outermost luminous region of the sun that remains visible during a solar eclipse. |
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Which of the following are true about the fast solar wind?
Choose at least one answer.
a. It flows at a velocity of 2000-4000 km/sec.
b. It is associated with open magnetic field lines.
c. It flows out of coronal holes.
d. Its primary sources are eruptive prominences and CMEs.
e. Its primary source comes from helmet streamers
f. It usually flows from high solar latitudes. |
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The Solar Wind is Composed of... Choose at least one answer.
a. Photons
b. The Sun's Magnetic Field
c. Neutrinos
d. A Plasma
e. Dust Grains
f. Solar Accoustic Waves |
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