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Author Question: What happened to the quarks that existed freely during the particle era? A) They combined in ... (Read 19 times)

shenderson6

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on: Jul 27, 2018
What happened to the quarks that existed freely during the particle era?
 
  A) They combined in groups to make protons, neutrons, and their antiparticles.
  B) They froze out of the soup of particles at the end of the era.
  C) They evaporated.
  D) They combined in groups to make electrons and neutrinos.
  E) They combined in groups to make W and Z bosons.

Question 2

Before about 50,000 years after the Big Bang the universe was
 
  A) radiation dominated.
  B) quark dominated.
  C) lepton dominated.
  D) matter dominated.
  E) dark energy dominated.


joewallace

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


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