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Round 5: Tossup 16

A fully degenerate, adiabatic gas with this property is modeled by the polytrope n equals three. The energy density of a universe of particles with this property scales with scale factor to the negative fourth. Degenerate electrons with this property have pressure proportional to density to the four-thirds, which occurs near the Chandrasekhar limit. For the first 50,000 years after the Big Bang, the universe was dominated by particles with this property. Hot (-5[1])dark matter consists of particles that had this property in the early universe, like neutrinos. An alternate (-5[1])name for astrophysical jets indicates that they have this property, corresponding to a Lorentz factor larger than one. (-5[1])For 10 points, name this property of particles that cannot be described with classical (-5[1])mechanics, (10[2])since their velocity is near the speed of light. ■END■ (10[2]0[2])

ANSWER: relativistic particles [or ultra-relativistic particles; accept relativistic jets; accept answers referring to particles that must be described with special relativity; accept answers referring to particles traveling near or at the speed of light or c until “speed of light” is read; prompt on non-classical; prompt on massless or nearly massless by asking “what other property do massless particles have?”; prompt on radiation by asking “when we say radiation in this context, we’re actually more generally talking about all particles with what property?”]
<GC, Other Science> | Packet F - Chicago C, McGill C, WashU A, Chicago B
= Average correct buzzpoint

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Buzzes

PlayerTeamOpponentBuzzpointValue
Sam KemenyBrandeis BHarvard A72-5
Christopher BradleySouthern Connecticut StateDartmouth A89-5
Jonathan HuangMITBrown107-5
Jake MarkusDartmouth BBrandeis A121-5
Joy AnHarvard ABrandeis B12210
Yixi YangYaleBowdoin B12210
Ayaan JajodiaDartmouth ASouthern Connecticut State1320
Max NealHarvard BBowdoin A13210
Jonathan SchnipperBrandeis ADartmouth B1320
Philip YaoBrownMIT13210

Summary

TournamentEditionMatchHeardConv. %Neg %Avg. Buzz
California (North)Main Site✓3100%100%131.67
California (South)Main Site✓4100%50%123.75
CanadaMain Site✓1080%30%121.50
FloridaMain Site✓333%33%110.00
Great LakesMain Site✓580%80%105.75
Lower Mid-AtlanticMain Site✓922%67%131.50
MidwestMain Site✓888%38%107.43
NortheastMain Site✓667%67%127.00
OverflowMain Site✓425%50%110.00
South CentralMain Site✓20%50%
SoutheastMain Site✓757%29%123.50
UKMain Site✓1275%42%99.22
Upper Mid-AtlanticMain Site✓863%63%116.20
Upstate NYMain Site✓475%25%115.67