Radiation astronomy/Microwaves/Quiz

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This image shows the variations in the lunar gravity field as measured by NASA's Gravity Recovery and Interior Laboratory (GRAIL) during the primary mapping mission from March to May 2012. Credit: NASA/JPL-Caltech/MIT/GSFC.

Microwave astronomy is a lecture and an article under development from the astronomy department that may be included in the course principles of radiation astronomy.

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

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Quiz

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1. Complete the text:

In the case of electric radiation, the associated fluctuation in angular is due to absorption of and decays stimulated by photons (dominated by Cosmic Microwave Background (CMB) photons in the interstellar (ISM).

2. Yes or No, Locations exist which have a lower temperature than the CMB.

Yes
No

3. Complete the text:

Match up the letter with the frequency range possibilities below:
microwaves - L
SHF - M
UHF - N
EHF - O
RF - P
Submillimeters - Q
IR - R
Visible rays - S
UV - T
X-rays - U
γ-rays - V
30 PHz to 30 EHz .
0.3 GHz to 300 GHz .
300 GHz to 3 THz .
790 THz to 30 PHz .
300 MHz to 3 GHz .
300 GHz to 430 THz .
> 30 EHz .
30 to 300 GHz .
430 THz to 790 THz .
3 kHz to 300 GHz .
3 to 30 GHz .

4. True or False, Radio rays have wavelengths of one millimeter or more.

TRUE
FALSE

5. Complete the text:

Astronomers place the submillimetre waveband between the and wavebands, typically taken to be between a few hundred micrometres and a millimetre.

6. True or False, Microwaves have wavelengths of one millimeter or more up to a meter.

TRUE
FALSE

7. Which types of radiation astronomy directly observe the rocky-object surface of Venus?

meteor astronomy
cosmic-ray astronomy
neutron astronomy
proton astronomy
beta-ray astronomy
neutrino astronomy
gamma-ray astronomy
X-ray astronomy
ultraviolet astronomy
visual astronomy
infrared astronomy
submillimeter astronomy
radio astronomy
radar astronomy
microwave astronomy
superluminal astronomy

8. Complete the text:

The peak emissivity is enhanced by about 23% for the (WIM) and only 11 % for the (WNM), although the peak frequency remains unchanged.

9. True or False, The position of the Sun can be determined directly with the use of microwave astronomy.

TRUE
FALSE

10. Complete the text:

The cosmic microwave background radiation is a glow that fills the in the part of the .

Your score is 0 / 0

Research

Hypothesis:

  1. Microwaves may have been used more extensively to study the Solar System.

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

External links

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

Development status: this resource is experimental in nature.
Resource type: this resource is a quiz.
Educational level: this is a research resource.
Subject classification: this is an astronomy resource.
  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.
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