Plasmas/Plasma objects/Quiz

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This is an image of a gigantic jet above a thunderstorm near the Philippines. Credit: H. T. Su, R. R. Hsu, A. B. Chen, Y. C. Wang, W. S. Hsiao, W. C. Lai, L. C. Lee, M. Sato & H. Fukunishi.

Plasma objects is a lecture and article about astronomical and other types of objects composed primarily of plasmas.

You are free to take this quiz based on plasma objects at any time.

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Quiz[edit]

Point added for a correct answer:   
Points for a wrong answer:
Ignore the questions' coefficients:

1. True or False, The natural electric field of the Earth has a negative charge at the surface of the Earth and a positive charge at the ionosphere.

TRUE
FALSE

2. When ionization cones are present, what green characteristics are usually readily observed?

O III green emission line
green continua
biconical structure
a common cone axis and apex
ionized gas
neon clouds

3. True or False, The natural electric field of the Earth is caused in part by the solar wind.

TRUE
FALSE

4. Complete the text:

Blue jets differ from sprites in that they project from the of the cumulonimbus above a , typically in a narrow cone, to the lowest levels of the .

5. True or False, The natural electric field of the Earth starts at its surface and extends inward to the core.

TRUE
FALSE

6. Which of the following is associated with an atmosphere?

clouds
jet streams
rain
wind
faults
lightning

7. True or False, The natural electric field of the Earth includes the electrosphere.

TRUE
FALSE

8. Which of the following are associated with electromagnetics?

angular momentum transfer
solar wind
protons
electrons
the baryon neutrino
charge neutralization

9. True or False, The natural electric field of the Earth has a gradient of the about 200 volts/meter just above the Earth's surface.

TRUE
FALSE

10. True or False, For the photosphere to have a net negative charge and interstellar electrons to be streaming into the solar system, the sign of the voltage at the Sun is positive.

TRUE
FALSE

Your score is 0 / 0


See also[edit]

External links[edit]

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