#1
Which layer of the Sun's atmosphere is typically visible during a solar eclipse?
Corona
ExplanationThe outermost layer with a visible halo effect.
#2
What is the primary source of the Sun's energy?
Nuclear fusion
ExplanationThe process of combining hydrogen nuclei.
#3
What is the solar wind?
A stream of solar material ejected from the Sun
ExplanationOutward flow of charged particles.
#4
What is the primary component of the Sun's core?
Hydrogen
ExplanationThe dominant element in the Sun's core.
#5
What is the approximate diameter of the Sun?
2 million kilometers
ExplanationThe width of the Sun.
#6
Which of the following is NOT a feature commonly observed on the Sun's surface?
Solar wind
ExplanationAn outward flow, not a surface feature.
#7
Which phenomenon on the Sun is responsible for producing sunspots?
Magnetic activity
ExplanationInterference in the Sun's magnetic field.
#8
What is the approximate surface temperature of the Sun's photosphere?
5,500 Kelvin
ExplanationThe temperature at the visible surface layer.
#9
What is the solar cycle?
The periodic variation in solar activity that occurs approximately every 11 years
ExplanationThe cyclic pattern of solar activity.
#10
Which solar phenomenon occurs when the Sun's magnetic field loops up into the corona and releases solar plasma?
Solar prominence
ExplanationEjection of material into the corona.
#11
What is the primary method scientists use to study the Sun's interior?
Measuring seismic waves on the Sun's surface
ExplanationStudy of vibrations in the Sun's surface.
#12
Which layer of the Sun's atmosphere is known for its reddish hue when seen during a solar eclipse?
Chromosphere
ExplanationReddish layer below the corona.
#13
Which layer of the Sun's atmosphere is characterized by its extremely high temperature and low density?
Corona
ExplanationHigh temperature outer layer.
#14
What are coronal loops?
Large-scale magnetic structures arching through the Sun's corona
ExplanationMagnetic loops extending from the Sun's surface.
#15
What is the process responsible for generating the Sun's magnetic field?
Dynamo effect
ExplanationConversion of mechanical energy to magnetic energy.
#16
Approximately how long does it take for energy generated in the Sun's core to reach the surface?
A few days
ExplanationTravel time of energy through the Sun's layers.
#17
What is the phenomenon called when the Sun's magnetic field lines are twisted and tangled?
Coronal mass ejection
ExplanationRelease of huge amounts of solar material.