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Round 4: Tossup 6

A solid object will be destroyed by this phenomenon as it crosses a distance threshold of 1.26 times radius times the cube root of a ratio of two densities. This phenomenon causes the appearance of namesake “tails” in colliding galaxies. This phenomenon, (-5[1])whose strength is inversely proportional to distance cubed, causes internal (-5[1])friction that heats up Io’s volcanoes. Objects are disintegrated by this phenomenon within the (*) Roche limit. This phenomenon causes the (10[1])Moon’s rotational and orbital periods to synchronize in its namesake “locking.” This force is caused by gradients in the strength (-5[1])of gravity. (10[1])For 10 points, what force drives a periodic rising and falling of sea level on Earth? (10[1])■END■ (10[2])

ANSWER: tidal force [or tidal forces; accept tides; accept tidal tails or tidal heating or tidal locking; prompt on gravitational force or gravity until "gravity" is read]
<Science - Physics, Aveek Sarkar> | VAULT II Packet 04
= Average correct buzzpoint

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Buzzes

PlayerTeamOpponentBuzzpointValue
Arjun NairNew YorkNorth Carolina41-5
Aditya Rao (Challenger-Strawberry Park)CaliforniaTexas B51-5
Cameron VanceGeorgia ATexas A7110
Hanna WuKentuckyGeorgia B91-5
Krit KulkarniWashingtonGeorgia C9310
Victor Fu (North Gwinnett)Georgia BKentucky10910
Ritam Setu (St. Mark's)Texas BCalifornia11010
Ryan JiangNorth CarolinaNew York11010

Summary

TournamentEditionMatchHeardConv. %Power %Neg %Avg. Buzz
VAULT II at Georgia Tech2026-01-24✕6100%83%17%56.50
Triangle Cup2026-03-13✓3100%33%67%79.33
VAULT II at Eden Prairie HS2026-03-13✓3100%33%33%77.67
VAULT II at McGill2026-03-13✓4100%0%0%80.25
VAULT II at UCSB2026-03-13✓5100%80%0%49.40
VAULT II Northern UK2026-04-24✓3100%100%0%53.00
VAULT II Southern UK2026-04-24✓475%0%50%83.33
VAULT II at Harvard2026-04-30✓4100%50%0%67.50
VAULT II at MINT2026-06-19✓5100%0%60%98.60
VAULT II Stanford Online2026-07-17✓8100%50%25%64.50