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Timeline of the Big Bang: Quiz


Question 1: In electroweak symmetry breaking, at the end of the electroweak epoch, all the fundamental particles are believed to acquire a mass via the Higgs mechanism in which the ________ acquires a vacuum expectation value.
Higgs bosonTop quarkQuarkStandard Model

Question 2: [14], §III, §IVG. In some grand unified theories, ________ will convert the remaining interstellar gas and stellar remnants into leptons (such as positrons and electrons) and photons.
Proton decayStandard ModelBaryonMatter

Question 3: The quark-gluon plasma that composes the universe cools until hadrons, including baryons such as protons and ________, can form.
ElectronNeutronAtomic nucleusAtom

Question 4: Before ________ occurs most of the photons in the universe are interacting with electrons and protons in the photon-baryon fluid.
Cosmic neutrino backgroundNeutrinoBig BangDecoupling

Question 5: Since the expansion of the universe appears to be accelerating, ________ are likely to be the largest structures that will ever form in the universe.
Void (astronomy)GalaxyGalaxy filamentSupercluster

Question 6: Therefore the ________ is a picture of the universe at the end of this epoch.
Cosmic microwave background radiationAtacama Cosmology TelescopeSunyaev-Zel'dovich effectVery Small Array

Question 7: Physics at this scale may be described by a grand unified theory in which the gauge group of the ________ is embedded in a much larger group, which is broken to produce the observed forces of nature.
Standard ModelPhotonParticle physicsQuark

Question 8: According to the ΛCDM model, ________ is present as a property of space itself, beginning immediately following the period of inflation, as described by the Equation of state (cosmology).
Dark energyInflation (cosmology)Dark matterBig Bang

Question 9: After inflation ends, particle interactions are still energetic enough to create large numbers of exotic particles, including W and Z bosons and ________.
Standard ModelTop quarkQuarkHiggs boson

Question 10: The photons emitted right after the recombination can now travel undisturbed and are those that we see in the ________ (CMB) radiation.
Atacama Cosmology TelescopeCosmic microwave background radiationVery Small ArraySunyaev-Zel'dovich effect

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