energy - 2025 ACF Fall

Tossup

For a particle in a box, this quantity equals n-squared times pi-squared (10[2])times h-bar-squared, (10[4])all divided (10[3])by 2 (10[2])m L (10[1])squared. (10[5])This quantity (10[1])is (-5[1])respectively raised and lowered (-5[1])by operators (10[1])denoted a-plus (10[3])and a-minus. (10[2]-5[1])This (10[1]-5[1])quantity is an eigenvalue (10[1])of the time-independent Schrödinger (10[1])equation, (10[4])which states that this quantity times (10[1])psi (10[1]-5[1])equals the Hamiltonian times (10[1])psi. (10[6]-5[1])A form (10[1])of the uncertainty (10[4])principle relates (0[1]-5[1])the uncertainties (-5[2])of time (10[2])and this (10[3]-5[1])quantity. (10[7]-5[13])Max (-5[2])Planck (-5[4])postulated (-5[5])that (10[1]-5[1])a (-5[1])photon’s value (10[1]-5[1])of this quantity (-5[1])equals h times frequency. (10[4]-5[1])This (10[1])quantity (-5[1])is (10[1])minimized (10[2]-5[1])in (10[1])the (10[1])ground (-5[1])state. (10[3])For 10 (10[1])points, (10[2])what quantity (10[2]-5[1])can be divided into “kinetic” and (10[1])“potential” (10[6])forms? (10[4])■END■ (10[35])

ANSWER: energy [accept total energy, kinetic energy, or potential energy; accept energy level; prompt on Hamiltonian until read by asking “what physical quantity does that represent?”]

<Editors, Physics>

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Buzzes

Player	Team	Opponent	Position	Value
Ba Loc Dinh	Illinois Urbana	Iowa A	11	10
Beckett Pursey	Purdue B	Indiana A	11	10
Danny Han	Stanford B	Berkeley Mighty Miner	13	10
Sai Subramanian	CWRU A	Michigan D	13	10
Pace Klein	CWRU B	CWRU C	13	10
Will Huang	Wisconsin A	Macalester	13	10
Justin Sato	Stanford A	Berkeley Skeleton King	15	10
Taman Truong	USC B	Claremont C	15	10
Oliver Thompson	CWRU D	Michigan State A	15	10
Annika Larson	Claremont A	UCLA B	17	10
Nathan Woolery	Louisville C	Michigan C	17	10
Drew Wetterlind	Iowa State	St. Thomas	19	10
James Xiao	Toronto A	McMaster A	20	10
Dominic Heffron	Florida Tech A	Florida A	20	10
Henry Ding	Princeton	Maryland A	20	10
Nikhil Nair	Boston University B	Brandeis Beethoven	20	10
Amelia Rees	Durham A	Durham B	20	10
Aarnav Vyas	Illinois Orange	Purdue C	22	10
Siheon Lee	Imperial C	Cambridge B	23	-5
Vedh Ramesh	Penn	Vassar B	27	-5
Samuel Gao	British Columbia C	Arizona State A	29	10
Aaryan Sumesh	Berkeley Archer Queen	Berkeley Boss Bandit	31	10
Skand Parvatikar	Arizona State B	Texas	31	10
Daniel Chen	Emory A	Georgia Tech F	31	10
Malcolm Meyn	McGill C	McGill B	33	-5
Omer Korkmaz	Johns Hopkins	Columbia A	33	10
Ollie Glin-Conway	Imperial D	Imperial B	33	10
Anne Fjeld	Alberta A	British Columbia B	34	-5
Nathan Whittington	Tennessee A	Georgia Tech C	34	10
Bokei Thompson	Amherst B	Dartmouth A	38	10
Vikram Rajmohan	Amherst A	Williams B	42	10
Lucas Hall	Waterloo C	Toronto G	43	10
Jiping Fang	Illinois Blue	Illinois Canada	43	10
Wesley Stine	Clemson A	Alabama A	43	10
Ahmed Azhari	Cambridge E	Oxford	43	10
Daniel Abrams	Rutgers B	Maryland B	49	10
Kaushik Jayaprabha	Dartmouth C	MIT B	50	10
Jolie Yeh	Warwick	LSE	50	-5
Cranmer McGinn	McMaster C	Queen's A	54	10
Tyler Dang	UCLA A	UCSD A	55	10
Rohan Soni	UCLA F	UC Santa Barbara	55	10
Daniel Rosado	UCLA D	UCSD B	55	10
Lily Katz	Stony Brook	George Mason C	55	10
Tishe Sonuga	Chicago B	WashU Grizzlers	55	10
Devon Kumar	Tufts C	Brown A	55	-5
Michael Shipman	Cambridge D	Imperial A	55	10
Saswat Sasha Tripathi	Chicago A	Indiana B	57	10
Dawson Teu	Waterloo A	Toronto C	60	10
Brayden Zhang	Vanderbilt B	Auburn C	60	10
Andrew Heller	Georgia Tech E	Georgia A	60	10
Antara Bhattacharya	Cambridge A	Southampton	60	10
Benjamin Turner	York	Edinburgh B	62	-5
Nitinkisor Rajesh Kumar	Edinburgh B	York	62	0
Advai Srinivasan	UC Irvine	UCLA E	64	-5
Rishi Mathur	Claremont B	USC A	64	-5
Liam Rojas	Virginia A	Virginia Tech A	66	10
Jeremy Scurlock	Chipola College	Vanderbilt A	66	10
Charlie Ruff	McGill A	Ottawa A	68	10
Nishad Joshi	Kentucky	Michigan State D	68	-5
Akhil Upadrasta	Ohio State D	Louisville D	68	10
Will Hoover	RIT A	Rochester	68	10
Tristan Scarlett	Ottawa D	Ottawa B	69	-5
Peyton Legg	UCF A	Florida B	69	-5
Joseph Strom	Louisville B	Louisville A	69	-5
Taran Knutson	Michigan A	Michigan State C	69	10
Jesse Mindel	NCSU A	Virginia Tech B	69	10
Noah Fine	UNC D	UNC C	69	-5
Cooper Morris	Columbia B	Rowan	69	-5
Gavin Chen	Vassar A	Rutgers A	69	-5
Aryan Malhotra	Rutgers C	NYU B	69	10
Austin Tran	Rose-Hulman A	WashU Grolars	69	-5
Alex Matchinski	Michigan Tech	Minnesota	69	-5
Jake Markus	Dartmouth B	Boston University A	69	10
Christopher Bradley	Southern Connecticut State University A	Williams A	69	-5
Jonathan Ho	Alberta B	Washington Masu	69	-5
Daniel Lu	Washington Pink	Washington State	69	10
Asheton Wilbanks	Clemson B	Tennessee B	69	-5
James Mogg	Birmingham	Cambridge C	69	10
Alex Forman	Cornell D	Binghamton A	69	10
Ariyan Miah	Binghamton B	Cornell B	69	-5
Connor Yu	Cornell C	Cornell A	69	-5
Claire Wilson	Lehigh B	NYU C	70	-5
Bryce Younger	Boise State	Washington Sockeye	70	-5
Huy Lai	UCSC	Berkeley Little Prince	71	-5
Artem Vovchenko	Ohio State C	Michigan State B	71	-5
Ben Mowery	Vermont A	Boston College B	71	-5
Rafa Travis	Durham C	Edinburgh A	71	-5
Neela Perceval-Maxwell	McGill E	Carleton B	72	-5
Liam Henderson	McMaster B	Guelph A	72	-5
Joshua Lam	Ohio State B	Pittsburgh	72	-5
Madeline Strauss	Tufts A	UConn A	72	-5
Lulu Anderson	Sheffield B	Edinburgh C	72	-5
Shaya Farahmand	Georgia Tech B	Auburn A	73	10
James Zhao	Vanderbilt C	Mississippi State A	73	-5
Jonathan Schnipper	Brandeis Mozart	Vermont B	74	-5
Venkat Das	WVU B	Ohio State A	76	10
Caleb Slusher	South Carolina A	Georgia Tech A	76	-5
Steven McPhillimey	Lehigh A	Maryland C	79	-5
Samuel Li	William & Mary A	UNC A	83	10
Fern Fang	VCU A	Virginia Tech C	83	10
Kelvin Ni	NYU A	George Mason B	83	-5
Jaie Somaia	Sheffield A	Durham D	83	10
Anirudh Terdal	LSE	Warwick	83	10
David Black	Illinois Champaign	William Woods University A	84	10
Matthew Bucek	George Mason A	Rutgers D	85	-5
Juan Landaeta	Florida State A	Florida Tech B	86	10
Nicolaus Derikx	Carleton A	Ottawa C	87	-5
Platon Gorokhov	Toronto E	Waterloo B	87	10
Ben Gardberg	Cornell B	Binghamton B	87	10
Jeremy Kim	Toronto F	Toronto H	88	10
Bharath Ram	Georgia Tech A	South Carolina A	89	10
Akif Ismail	Williams C	Brandeis Bach	90	-5
Logan Van Pelt	Washington Coho	Washington Chinook	91	10
Coy Mier	Auburn B	Tennessee Tech	91	10
Gregory Stone	ESF	RIT B	91	10
Saju Ramraj	Toronto I	Brock A	93	10
Stephen Ottewell	Toronto B	Toronto D	94	10
Jaime Wang	Washington Atlantic	British Columbia A	94	10
David Yuan	Berkeley Little Prince	UCSC	96	10
Benjamin Silversten	William & Mary C	JMU A	96	-5
Yashaswi Jaishy	Iowa B	Purdue D	96	10
Kevin Nolan	NCSU B	Tusculum A	102	10
Addison Wiggins	South Florida A	ERAU Daytona A	103	10
Andrea Owusu	Duke A	William & Mary B	103	10
Katie Young	Liberty C	JMU B	103	10
Andrew Wilson	Montevallo	Clemson C	103	10
Nelson Adams-Riley	Sewanne	Georgia Tech D	103	10
Ada Bendel	Bristol	Cardiff	103	10
Chen Nagahawatte	Ottawa B	Ottawa D	104	10
Charlie Rickards	Ottawa C	Carleton A	104	10
Andrew Sklar	Vassar B	Penn	104	10
Dylan Tanouye	Tufts B	Boston College A	104	10
Joseph Wang	UCLA E	UC Irvine	105	10
Chris Chang	USC A	Claremont B	105	10
Denali Tran-Le	McGill B	McGill C	105	10
Gus Morin-Strom	Carleton B	McGill E	105	10
Dylan Steptoe	Guelph A	McMaster B	105	10
Nicholas Nguyen	Florida B	UCF A	105	10
Snehan Saroch	Louisville A	Louisville B	105	10
Emmet Ewing	Michigan State B	Ohio State C	105	10
Zac Stapler	Pittsburgh	Ohio State B	105	10
Sam Kung	UNC C	UNC D	105	10
Carly Hemani	JMU A	William & Mary C	105	10
Yiwei Jiang	NYU C	Lehigh B	105	10
Ben Spirtas	Maryland C	Lehigh A	105	10
Braydon Morefield	George Mason B	NYU A	105	10
John Shelly	Rowan	Columbia B	105	10
Aarav Vasanthan	Rutgers A	Vassar A	105	10
Alex Wong	Rutgers D	George Mason A	105	10
Ethan Skolnick	WashU Grolars	Rose-Hulman A	105	10
Virginia Brooks	Minnesota	Michigan Tech	105	10
Ben Stras	Wisconsin C	Wisconsin B	105	10
Owen Gibbs	Boston College B	Vermont A	105	10
Indigo Khanna	Vermont B	Brandeis Mozart	105	10
Emma Gates	Brown A	Tufts C	105	10
Judah Friedman	UConn A	Tufts A	105	10
Matthew Kohn	Williams A	Southern Connecticut State University A	105	10
Nathaniel Martin	Brandeis Bach	Williams C	105	10
Simarya Ahuja	Washington Sockeye	Boise State	105	10
Joyann Hua	British Columbia B	Alberta A	105	10
Haylee Weisner	Washington Masu	Alberta B	105	10
Richard D’Angelo	Tennessee B	Clemson B	105	10
Towery McNeil	Mississippi State A	Vanderbilt C	105	10
James Headon	Edinburgh A	Durham C	105	10
Musa Ahmed	Edinburgh C	Sheffield B	105	10
Adil Soubki	Cambridge B	Imperial C	105	10
Derek Li	Cornell A	Cornell C	105	10

Summary

Tournament	Edition	TUH	Conv. %	Neg %	Average Buzz
UK (North)	UK	5	80%	60%	78.25
UK (South)	UK	8	100%	25%	68.88
Northern California	US	4	100%	25%	38.75
Southern California	US	7	100%	29%	58.14
Eastern Canada (1)	US	5	100%	80%	97.20
Eastern Canada (2)	US	9	100%	11%	71.56
Florida	US	4	100%	25%	78.50
Great Lakes	US	11	91%	36%	58.60
Lower Mid-Atlantic	US	9	100%	22%	91.00
Upper Mid-Atlantic	US	12	100%	58%	80.00
Midwest	US	9	100%	11%	53.78
North	US	4	100%	25%	60.50
Northeast	US	12	100%	50%	79.42
Pacific	US	8	100%	38%	78.63
Southeast	US	13	100%	23%	74.08
Upstate NY	US	5	100%	40%	84.00