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Blue is between violet and green in the spectrum of visible light. Credit: Gringer.

Electromagnetic interaction is a lecture and an article about the application of laboratory physics to the electromagnetic interaction. It is part of a physics initiative to increase and improve resources on Wikiversity. And, it is an offering from the radiation astronomy department to increase awareness of physics in astronomy.

You are free to take this quiz based on the electromagnetic interaction at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links and in the {{radiation astronomy resources}}, {{charge ontology}} and {{physics resources}} templates. This should give you adequate background to get 100 %.

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Enjoy learning by doing!

Quiz[edit | edit source]


1 Yes or No, A calculation of energy is not possible unless a mass is involved.


2 Which of the following is not an electron volt?

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

3 True or False, The force of gravity is a major portion of the electromagnetic interaction.


4 TeV muons from gamma-ray primaries are rare because?

only produced by higher energy gamma rays
suppressed gamma-ray flux
decreasing flux at the source
GeV gamma rays
interstellar light

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


6 Which of the following are involved in the weak force?

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

7 True or False, Any space in the real universe is completely empty of microwaves.


8 Which of the following are associated with electromagnetics?

angular momentum transfer
solar wind
the baryon neutrino
charge neutralization

9 True or False, The force of gravity is the first astronomical source of the electromagnetic interaction.


10 Which of the following are characteristic of the first true astrophysical gamma-ray source?

a strong 2.223 MeV emission line
a solar flare
the formation of deuterium
the electron neutrino

11 True or False, Charge exists in a positive and negative form.


12 True or False, Muons inherit the high energy of the parent cosmic rays.


Hypotheses[edit | edit source]

  1. Electromagnetic interactions may be the best project hierarchy.

See also[edit | edit source]

External links[edit | edit source]

{{Physics resources}}{{Radiation astronomy resources}}