Stars/Sun/Heliognosy/Quiz

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This computer-generated diagram of internal rotation in the Sun shows differential rotation in the outer convective region and almost uniform rotation in the central radiative region. Credit: Global Oscillation Network Group (GONG).

Heliognosy is a lecture and an article focusing on the structure and composition of the Sun. It is a lecture as part of the astronomy course on solar astronomy.

You are free to take this quiz based on heliognosy 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.

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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

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

1. True or False, Boron is the third most abundant element detected on the Sun.

TRUE
FALSE

2. Complete the text:

Hoyle notes that he and others in the circles to which he was privy continued until after the to believe that the Sun was made mostly of internally.

3. True or False, Hydrogen has an emission line in the cyan.

TRUE
FALSE

4. The core of the Sun was believed to be made mostly of iron to explain what?

the source of neutrinos
the Sun's global magnetic field
the existence of magnetic poles like the Earth
the rotation of the Sun
surface differential rotation of the Sun
magnetic field reversals like the Earth

5. Complete the text:

Match up the structure of the Sun with the characteristic or property:
radiative zone - L
core - M
convection zone - N
dynamo - O
tachocline - P
photosphere - Q
atmosphere - R
temperature region - S
chromosphere - T
transition region - U
corona - V
heliosphere - W
diffusion rather than convection .
bow shock .
weakly ionized, relatively cold and dense plasma .
X-ray emission .
normally invisible .
circular mass movement of plasma .
coolest layer of the Sun .
shear between different parts of the Sun that rotate at different rates .
above the photosphere .
transition from almost uniform to differential rotation .
150 g/cm3 .
ultraviolet emission .

Your score is 0 / 0

Research

Hypothesis:

  1. The center of the Sun could still be made of iron and be the source of the global magnetic field.

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.
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