Charges/Interactions/Weak/Quiz

< Charges < Interactions < Weak
The ALMA correlator is one of the most powerful supercomputers in the world. Credit: ALMA (ESO/NAOJ/NRAO), S. Argandoña.

Weak interaction is a lecture and an article about the application of laboratory and theoretical physics to astronomical phenomena.

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Quiz

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

1. Which of the following are characteristic of a β+ decay?

a positron emission
a decay product of a neutron
weak interaction
an electron neutrino
comes in mutable varieties
a mu neutrino

2. True or False, A calculation of energy is not possible unless a mass is involved.

TRUE
FALSE

3. Which of the following is not an electron volt?

a unit of energy
a quantity that denotes the ability to do work
the angular momentum of the planet Mercury around the Sun
1.2 PeV
a unit dimensioned in mass, distance, and time
a unit not based on the Coulomb

4. Complete the text:

Match up the item letter with each of the first astronomical source possibilities below:
Meteors - A
Cosmic rays - B
Neutrons - C
Protons - D
Electrons - E
Positrons - F
Gamma rays - G
Superluminals - H
cosmic rays
galactic nuclei .
electron-positron annihilation .
weak force nuclear decay .
AGNs .
511 keV photon pair production .
solar wind .
comets .

5. Complete the text:

The tracks in emulsion chambers have been used for measurements of nuclei above in a series of balloon-borne experiments.

6. True or False, A unit vector is a direction with a magnitude of one.

TRUE
FALSE

7. Which of the following are involved in the weak force?

a core which emits neutrinos
Fermi's β-decay theory
26Al
undetectable with balloon-borne detectors
steady enough emission to be used as a standard for X-ray emission
observed with delta-rays in 1731
M. Fierz
Gamow-Teller interactions

8. The strong force is involved in which of the following phenomena?

s-waves
the sum of the spins
neutrinos
Pauli's exclusion principle
radio waves
deuterium

9. True or False, When the magnetic poles of the Sun reverse during the solar cycle, there is a short time in which the polar diameter is greater than the equatorial diameter.

TRUE
FALSE

10. Which of the following are associated with electromagnetics?

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

11. True or False, The generalized weak force theory combines the Fermi and Gamow-Teller conditions into a unified theory.

TRUE
FALSE

12. Which of the following are associated with the big bang neutrinos?

a launch location
relic neutrinos
of order of the photon density
the thermal energy at which neutrinos decouple
neutrinos dynamically dominate baryons
a contracting universe

13. True or False, The force of gravity is the first astronomical source of the remnant nuclear force.

TRUE
FALSE

14. The generalization to self-gravitating continua is outlined focused on the classification problem of singularities and metamorphoses arising in the

.

15. If energy is the impetus behind all motion and activity, which of the following are associated with power?

a launch location
a rate of change of the impetus with time
photon density
an acceleration of the impetus
neutrinos dynamically dominating baryons
a rate of change of mass

16.
3D Vector.svg
For standard basis, or unit, vectors (i, j, k) and vector components of a (ax, ay, az), what are the right ascension, declination, and value of a?
if the x-axis is the longitude of the Greenwich meridian, and ax equals ay, then RA equals 6h
if the x-axis is the longitude of the Greenwich meridian, and ax equals ay, then RA equals 3h
the value of a is given by a = \sqrt{a^2_x + a^2_y + a^2_z}
if ax equals ay equals az, then the declination is -45°
if ax equals ay equals az, then the declination is +45°

17. Which of the following are associated with the envelope of the polarization current density?

emission of electromagnetic radiation from a superluminal charged particle
intensity of some components decays as the inverse of the distance from the source
non-spherically-decaying sources
emission contains very high frequencies not present in the synthesis of the source
non-spherically decaying components of the radiation do not violate energy conservation
strong electromagnetic fields are compensated by weak fields elsewhere

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Research

Hypothesis:

  1. The weak interaction is also a function of the number of tangles (very few) and distance exponent.

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.
Subject classification: this is a physics resource .
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