Radiation astronomy/Lightnings/Quiz

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A lightning storm over England is imaged. Credit: Catalin Fatu.

Lightning radiation astronomy is a lecture from the radiation astronomy department on the origin, constitution and occurrence of lightning.

You are free to take this quiz based on lightning radiation astronomy at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, or in the {{Principles of radiation astronomy}} template. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit | edit source]


1 Complete the text:

A composite

spectrum is approximately a

law over at least the ≈ 5 decade wavenumber range 10-13 m-1 < wavenumber < 10-8 m-1 and that may extend to


2 True or False, Some lightning that occurs is actually positive charges moving downward to the Earth's surface.


3 Which of the following are associated with electromagnetics?

angular momentum transfer
solar wind
the baryon neutrino
charge neutralization

4 True or False, Like all elementary particles, the electron has a corresponding antiparticle of opposite spin but equal mass and charge (-1).


5 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


6 True or False, Cloud-to-cloud lightning occurs between charged portions of clouds with opposite sign.


7 Yes or No, Blue jets differ from sprites in that they project from the top of the cumulonimbus above a thunderstorm to the lowest levels of the ionosphere.


8 True or False, Some lightning strikes may be originated by cosmic rays.


9 Yes or No, Red sprites tend to be associated with significant lightning strikes.


10 Which of the following is associated with an atmosphere?

jet streams

11 True or False, Antilightning is lightning spinning backward in time.


Hypotheses[edit | edit source]

  1. Lightning is an effort by the Earth to balance charges impinging on the ionosphere from the solar wind.

See also[edit | edit source]

External links[edit | edit source]

{{Radiation astronomy resources}}