Stars/Sun/Heliography/Quiz

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This visual image using the Vacuum Tower Telescope shows solar granulation around and outward from a sunspot or hole. Credit: Vacuum Tower Telescope, NASA.

Heliography is a lecture and an article focusing on the features of the Sun's surface. It is a lecture as part of the astronomy course on solar astronomy.

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

To improve your score, read and study the lecture, the links contained within, listed under See also, and in the course 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.

A suggestion is to 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

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1. True or False, The Sun has no specific heliographic feature that allows the direct derivation of longitude and latitude.

TRUE
FALSE

2. Complete the text:

The longitude (λ2) is measured from the central meridian as it passes through the node of the solar equator at noon on January 1, 1854 (JD 2398220.0) and rotating with the period of 25.38 Earth days.

3. True or False, Sunspots are holes in the surface of the Sun.

TRUE
FALSE

4. What features occasionally show a heliographic distribution on the surface of the Sun?

granulation or supergranulation
active regions
coronal holes
the north an south heliographic poles
sunspots
latitudinal bands that rotate at different rates

5. Complete the text:

Match up a heliographic feature of the Sun with a heliographic property:
sunspots - L
polar coronal holes - M
coronal mass ejection - N
coronal loops - O
flares - P
photosphere - Q
atmosphere - R
106 temperature region - S
chromosphere - T
transition region - U
corona - V
heliosphere - W
begin to appear at high latitudes and move toward the equator .
hemispherically centered on the solar equator .
uniform and independent of latitude and longitude .
intensity tracks with active regions .
uniformly active above the photosphere .
tracks with flaring .
tracks with flares, loops, and active regions .
tracks with active regions away from sunspots .
differential rotation with latitude .
track in active regions with sunspots .
appear around the magnetic poles and track with them .
forms a kind of nimbus around chromospheric features such as spicules and filaments, and is in constant, chaotic motion, viewed in the ultraviolet .

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Research

Hypothesis:

  1. Phenomena occurring above or below the surface of the Sun alter its appearance.

Control groups

This is an image of a Lewis rat. Credit: Charles River Laboratories.

The findings demonstrate a statistically systematic change from the status quo or the control group.

“In the design of experiments, treatments [or special properties or characteristics] are applied to [or observed in] experimental units in the treatment group(s).[1] In comparative experiments, members of the complementary group, the control group, receive either no treatment or a standard treatment.[2]"[3]

Proof of concept

Def. a “short and/or incomplete realization of a certain method or idea to demonstrate its feasibility"[4] is called a proof of concept.

Def. evidence that demonstrates that a concept is possible is called proof of concept.

The proof-of-concept structure consists of

  1. background,
  2. procedures,
  3. findings, and
  4. interpretation.[5]

See also

References

  1. ↑ Klaus Hinkelmann, Oscar Kempthorne (2008). Design and Analysis of Experiments, Volume I: Introduction to Experimental Design (2nd ed.). Wiley. ISBN 978-0-471-72756-9. http://books.google.com/?id=T3wWj2kVYZgC&printsec=frontcover.
  2. ↑ R. A. Bailey (2008). Design of comparative experiments. Cambridge University Press. ISBN 978-0-521-68357-9. http://www.cambridge.org/uk/catalogue/catalogue.asp?isbn=9780521683579.
  3. ↑ "Treatment and control groups, In: Wikipedia". San Francisco, California: Wikimedia Foundation, Inc. May 18, 2012. Retrieved 2012-05-31.
  4. ↑ "proof of concept, In: Wiktionary". San Francisco, California: Wikimedia Foundation, Inc. November 10, 2012. Retrieved 2013-01-13.
  5. ↑ Ginger Lehrman and Ian B Hogue, Sarah Palmer, Cheryl Jennings, Celsa A Spina, Ann Wiegand, Alan L Landay, Robert W Coombs, Douglas D Richman, John W Mellors, John M Coffin, Ronald J Bosch, David M Margolis (August 13, 2005). "Depletion of latent HIV-1 infection in vivo: a proof-of-concept study". Lancet 366 (9485): 549-55. doi:10.1016/S0140-6736(05)67098-5. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1894952/. Retrieved 2012-05-09.

External links

This is a research project at http://en.wikiversity.org

Development status: this resource is experimental in nature.
Educational level: this is a research resource.
Resource type: this resource is a quiz.
Subject classification: this is an astronomy resource.
This article is issued from Wikiversity - version of the Wednesday, February 03, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.