PF Insights Scavenger Hunt

Estimated Read Time: 1 minute(s)
Common Topics: pf, insight, keeping, included, comment

Have you been keeping up with reading each PF Insight? Let’s find out! Every question’s answer can be found in a PF Insight. Hint links are included if you need help.  Be sure to post your score in the comment area.

1. Eukaryotes actually represent the fusion of an archaeal host and a bacterium that eventually became the mitochondria, through a process called… (Hint)


2. When a positive and negative charge are near one another, the total electric field far from the pair (dipole) is… (Hint)


3. It was not until 1797 when _______ first discovered the validity and enormous simplifications possible by complex numbers (Hint)


4. A _______ —also known as a stacker rainbow—is an infrequent phenomenon, consisting of several faint rainbows on the inner side of the primary rainbow, and very rarely also outside the secondary rainbow. (Hint)


5. The _____ is the layer (atmospheric) in which convection can operate. (Hint)


6. Matter particles dilute and photon wavelengths stretch as the universe expands in a process called ______ (Hint)


7. Planck time is based on the ______, Newton’s gravitational constant, and Planck’s (reduced) constant (Hint)


8. Back in the early ’70s, the Italian physicist, _______ reportedly said that string theory was part of 21st-century physics that fell by chance into the 20th century. I think it was a very wise remark. (Hint)


9. Michael Faraday begin as an experimental chemist with _______. (Hint)


10. There are three types of neutrinos: electron neutrinos, muon neutrinos and ______ neutrinos (and their corresponding antiparticles).  (Hint)


11. The first definition of energy that is usually encountered is “energy is the capacity of a ______ to do work”. (Hint)


12. In 2010 (at the LHC), it was noted that occasionally small particles fell through the beam pipe and into the beam. As the origin was unclear, they were called “___________” (Hint)


13. The Northernmost line of latitude where the Sun can be directly overhead (during the Summer Solstice) is called the _________. (Hint)


14. The _____ is the hypothetical shape that the Earth would take if its surface were completely covered in ocean (Hint)


15. In GR the force of gravity is considered to be a ______ force (Hint)


9 replies
  1. Ibix says:

    15/15 on my second try (cheating – but I did get 13 on my first try).

    There's a sentence below the score that implies that there should be a grade, but I didn't see one.

  2. Ibix says:

    The last two marked my answers wrong but provided no correct answers. I'm pretty confident I got the right answers to those.

    So I scored 11, 12 or 13 depending on how much my confidence is justified. Teething issues aside, that was a fun quiz. :biggrin:

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