Quizbank/largely useless questions

We need lots of questions in a truly useful open source bank of questions so that students will not be able to memorize the bank. For that reason, even mediocre questions might someday come in handy. This example of useless questions links out of this discussion.

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{Yes or No, A time-averaged flux is called an intensity. |type="()"} + Yes - No

{True or False, Intensity astronomy focuses on creating a sufficient intensity for a desired property or characteristic that a signal may be converted in a detector to an electric current. |type="()"} + TRUE - FALSE

{Which of the following are theoretical radiation astronomy phenomena associated with a satellite in orbit around the Earth? |type="[]"} + background radiation - a charged particle wind which emanates out of a beam line + gravity + near the barycenter for the Earth-Moon system - swirls of tan, green, blue, and white in the water + electric arcs + intensity of radiation

{Yes or No, Visually dark infrared sources can be radiative cosmic dust, hydrogen gas such as an H II region (e.g. the Orion Nebula), an H I region of hydrogen, a molecular cloud, or a coronal cloud. |type="()"} + Yes - No

{A cosmic ray may originate from what astronomical source? |type="()"} - Jupiter - the solar wind - the diffuse X-ray background - Mount Redoubt in Alaska - the asteroid belt + an active galactic nucleus

{True or False, Each element has electronic orbitals of characteristic energy. |type="()"} + TRUE - FALSE

{Complete the text: |type="{}"} Cosmic rays with energies over the { threshold (i) } energy of 5 x 10¹⁹ { eV (i) } interact with { cosmic microwave background (i) } photons to produce { pions (i) } via the $\mathrm{\Delta }$ resonance.

{Complete the text: |type="{}"} A proof-of-concept structure, including a control group, consists of { background (i) }, procedures, findings, and { interpretation (i) }.

{Which of the following are cold dark matter gamma rays? |type="[]"} + expected signal comparable to background + annihilation radiation - a pronounced cosmic-ray halo + difficult to separate from a dark halo + dwarf spheroidals - weakly interacting massless particles

{Which of the following are likely associated with the intensity of a green emission line? |type="[]"} - rocky objects + high peak to background + plasma objects + a G2V photosphere - rotation - watery surface - spots

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