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Stars, Galaxies, And The Universe AND Formation Of The Solar System #2
Test Description: Study for your test!
Instructions: Answer all questions to get your test result.
1) In what layer of the sun is energy produced?
A
radiative zone
B
chromosphere
C
core
D
convective zone
2) The planets of the solar system formed as
A
planetesimals collided into one another
B
the center of the gas cooled
C
planetesimals flattened into a rotating disk
D
the sun absorbed extra gas and dust from the solar system
3) What factor allowed the sun to form in the solar system?
A
intense heat at the center of the solar nebula
B
the explosion of planetesimals
C
the division of hydrogen atoms
D
the division of helium atoms
4) How do sunspots affect the Earth?
A
Sunspot activity might affect Earth's temperatures
B
Sunspot activity could send electrically charged particles into Earth's atmosphere.
C
Sunspot activity has been linked to hurricanes
D
low sunspot activity might contribute to global warming
5) What happens during nuclear fusion in the sun?
A
Hydrogen nuclei combine to form helium
B
Helium nuclei combine to form hydrogen
C
Oxygen nuclei combine to form helium
D
Helium nuclei combine to form oxygen
6) Hot gases are carried to the sun's visible surface from a region called the _______.
A
radiative zone
B
convective zone
C
core
D
chromosphere
7) Energy leaves the sun as light from a region called the _________.
A
chromosphere
B
radiative zone
C
photosphere
D
corona
8) How do scientists know the universe is expanding?
A
redshift
B
the galaxies are spreading out
C
blueshift
D
all of the above
9) Earth's period of revolution is about
A
three months
B
one week
C
one day
D
one year
10) What caused the solar system to form?
A
the growth of the solar nebula
B
the birth of a nearby star
C
the collapse of the solar nebula
D
nuclear fusion in the sun
*select an answer for all questions
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