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, whose strength is inversely proportional to distance cubed, causes internal friction that heats up Io’s volcanoes. Objects are disintegrated by this phenomenon within the (*) Roche limit. This phenomenon causes the Moon’s rotational and orbital periods to synchronize in its namesake “locking.” This force is caused by gradients in the strength of gravity. For 10 points, what force drives a periodic rising and falling of sea level on Earth? ■END■
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
Buzzes
| Player | Team | Opponent | Buzzpoint | Value |
|---|---|---|---|---|
| Fergus Smith | Bath | Southperial | 21 | -5 |
| Zhangir Satzhanov | Birmingham A | Warperial | 67 | -5 |
| Mia Clark-Webb | Oxford | Birmingham B | 75 | 10 |
| Ahmed Azhari | Cambridge | Southampton | 82 | 10 |
| Dawid Nawrocki | Southperial | Bath | 93 | 10 |
| Ethan Elliott | Warperial | Birmingham A | 110 | 0 |
Summary
| Tournament | Edition | Match | Heard | Conv. % | Power % | Neg % | Avg. Buzz |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✕ | 6 | 100% | 83% | 17% | 56.50 |
| Triangle Cup | 2026-03-13 | ✓ | 3 | 100% | 33% | 67% | 79.33 |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✓ | 3 | 100% | 33% | 33% | 77.67 |
| VAULT II at McGill | 2026-03-13 | ✓ | 4 | 100% | 0% | 0% | 80.25 |
| VAULT II at UCSB | 2026-03-13 | ✓ | 5 | 100% | 80% | 0% | 49.40 |
| VAULT II Northern UK | 2026-04-24 | ✓ | 3 | 100% | 100% | 0% | 53.00 |
| VAULT II Southern UK | 2026-04-24 | ✓ | 4 | 75% | 0% | 50% | 83.33 |
| VAULT II at Harvard | 2026-04-30 | ✓ | 4 | 100% | 50% | 0% | 67.50 |
| VAULT II at MINT | 2026-06-19 | ✓ | 5 | 100% | 0% | 60% | 98.60 |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 100% | 50% | 25% | 64.50 |