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The Sun
Test Description: FCAT Practice
Instructions: Answer all questions to get your test result.
1) Convection cells in the sun’s convective zone carry energy from the top of the radiative zone to the photosphere. In convection cells, hot gases rise to the photosphere, cool, and then sink back into the convective zone. What causes the transfer of e
A
the absorption and re-emission of electromagnetic waves
B
the condensation of hot gas into liquid
C
the movement of matter
D
the process of nuclear fusion
2) Which of these features would scientists most likely describe as a “scarf unrolling into space” from the sun’s surface?
A
convection cell
B
prominence
C
solar flare
D
sunspot
3) With which of these processes are solar flares most closely linked?
A
nuclear fusion
B
convection
C
rotation
D
magnetic disturbances
4) Dark areas can form in the photosphere of the sun. These areas are cooler than surrounding areas. They also have a strong magnetic field. Which term best describes these dark areas?
A
sunspot
B
prominence
C
solar flare
D
solar wind
5) One layer of the sun has a temperature of 15,000,000¡C. Here, the high temperature caused by crushing gravity causes hydrogen nuclei to fuse, forming helium nuclei. In which layer of the sun does this process take place?
A
photosphere
B
convection zone
C
radiative zone
D
core
6) Which term best describes the movement of matter due to temperature differences in the sun?
A
radiation
B
convection
C
conduction
D
nuclear fusion
7) The sun is made up of six different layers. Three of these layers make up the interior of the sun. The remaining three layers make up the sun’s atmosphere. Which is the innermost layer of the sun?
A
convective zone
B
core
C
corona
D
chromosphere
8) How is the rotation of the sun different from the rotation of Earth?
A
The parts of the sun rotate at different speeds and the parts of Earth rotate at the same speed.
B
The sun’s equator rotates faster than its poles and Earth’s equator rotates slower than its poles.
C
The parts of the sun rotate in different directions and the parts of Earth all rotate in the same direction.
D
The sun’s poles rotate faster than its equator and Earth’s poles rotate slower than its equator.
9) Which of these processes is defined as the joining of two atomic nuclei to create a new nucleus?
A
particle radiation
B
nuclear fusion
C
nuclear fission
D
nuclear radiation
10) The sun produces large amounts of energy. By what process does the sun produce energy?
A
radiation
B
nuclear fusion
C
electromagnetic radiation
D
convection
11) Why do objects in the solar system orbit the Sun?
A
The Sun has the strongest gravitational attraction
B
The Sun's surface temperature is around 6000 degrees
C
The Sun is the largest object in the Universe
D
The sun is the brightest
*select an answer for all questions
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