The Sun Question Preview (ID: 34635)


FCAT Practice. TEACHERS: click here for quick copy question ID numbers.

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

Which of these features would scientists most likely describe as a “scarf unrolling into space” from the sun’s surface?
a) convection cell
b) sunspot
c) solar flare
d) prominence

With which of these processes are solar flares most closely linked?
a) rotation
b) convection
c) nuclear fusion
d) magnetic disturbances

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) solar wind
c) solar flare
d) prominence

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) convection zone
b) core
c) photosphere
d) radiative zone

Which term best describes the movement of matter due to temperature differences in the sun?
a) conduction
b) convection
c) nuclear fusion
d) radiation

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) chromosphere
b) convective zone
c) core
d) corona

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 sun’s poles rotate faster than its equator and Earth’s poles rotate slower than its equator.
d) The parts of the sun rotate in different directions and the parts of Earth all rotate in the same direction.

Which of these processes is defined as the joining of two atomic nuclei to create a new nucleus?
a) nuclear fission
b) nuclear fusion
c) particle radiation
d) nuclear radiation

The sun produces large amounts of energy. By what process does the sun produce energy?
a) radiation
b) convection
c) nuclear fusion
d) electromagnetic radiation

Why do objects in the solar system orbit the Sun?
a) The sun is the brightest
b) The Sun's surface temperature is around 6000 degrees
c) The Sun is the largest object in the Universe
d) The Sun has the strongest gravitational attraction

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