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The Sun #1
Test Description: Practice Review Time
Instructions: Answer all questions to get your test result.
1) The sun converts matter into energy in the
A
radioactive zone
B
core
C
corona
D
convective zone
2) Most of the sun's energy is a result of
A
nuclear fissure
B
nuclear division
C
nuclear fission
D
nuclear fusion
3) Auroras are frequently seen
A
after solar flares
B
near the equator
C
every 11 years
D
before a sunspots cycle
4) How long is the average sunspot cycle?
A
110 years
B
100,000 years
C
11 years
D
1,100 years
5) What elements make up most of the sun's mass?
A
Helium and Nitrogen
B
Carbon and Hydrogen
C
Carbon and Oxygen
D
Hydrogen and Helium
6) How are auroras caused?
A
the solar wind bends around Earth
B
the solar wind changes as it gets farther from the sun
C
caused by the interaction of solar wind and Earth's atmosphere
D
caused by the interaction of solar winds and Earth's magnetosphere
7) The main factor that shapes the life and eventual death of a star is its
A
temperature
B
color
C
mass
D
diameter
8) Strong magnetic fields on regions of the sun lead to sunspots because
A
convection increases and energy increases
B
convection slows and energy decreases
C
more energy is being transferred to the region
D
the Sun's surface temperature vary wildly
9) During the main sequence stage, how is energy generated in the star's core?
A
Carbon fuses into oxygen
B
Hydrogen fuses into helium
C
Carbon fuses into iron
D
Carbon fuses into hydrogen
10) How long would a star such as the sun's mass stay on the main sequence?
A
a thousand years
B
a million years
C
10 trillion years
D
10 billion years
*select an answer for all questions
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