molecules - 2025 ACF Fall - Buzzpoints App

Question

Simulations of these things may use the gradient of the Lennard-Jones potential to generate a force field. For 10 points each:

[10h] Name these things. The Born–Oppenheimer approximation is used when simulating the trajectories of these things in a technique known as their namesake “dynamics.”

ANSWER: molecules [accept molecular dynamics; accept atoms]

[10e] A term proportional to “distance to the power of negative six” in the Lennard-Jones potential represents the London dispersion force, which belongs to this class of weak intermolecular forces named for a Dutch scientist.

ANSWER: van der Waals forces

[10m] The repulsive term in the Lennard-Jones potential is proportional to “distance to the power of negative [this number].” The SI prefix “pico-” (“pee-ko”) is equivalent to a factor of “ten to the power of negative [this number].” Your answer should be a positive number.

ANSWER: 12 [or twelve; reject “negative 12”]

<Editors, Chemistry>

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Summary


Northern California	Main	Y	4	20.00	100%	75%	25%
Southern California	Main	Y	7	20.00	100%	86%	14%
Eastern Canada (1)	Main	Y	5	12.00	80%	40%	0%
Eastern Canada (2)	Main	Y	9	16.67	100%	56%	11%
Florida	Main	Y	4	17.50	100%	75%	0%
Great Lakes	Main	Y	11	18.18	100%	64%	18%
Lower Mid-Atlantic	Main	Y	9	14.44	89%	56%	0%
Upper Mid-Atlantic	Main	Y	1	20.00	100%	100%	0%
Upper Mid-Atlantic	Main	Y	9	20.00	89%	78%	33%
Upper Mid-Atlantic	Main	Y	2	20.00	100%	100%	0%
Midwest	Main	Y	9	15.56	89%	67%	0%
North	Main	Y	4	22.50	100%	100%	25%
Northeast	Main	Y	1	10.00	100%	0%	0%
Pacific	Main	Y	8	17.50	100%	75%	0%
South Central	Main	Y	6	11.67	67%	50%	0%
Southeast	Main	Y	12	21.67	92%	100%	25%
UK (North)	UK	Y	5	12.00	60%	60%	0%
UK (South)	UK	Y	8	15.00	88%	63%	0%
Upstate NY	Main	Y	5	18.00	100%	60%	20%

Data


Berkeley Little Prince	Stanford A	0	10	10	20
Berkeley Mighty Miner	UCSC	0	10	0	10
Berkeley Skeleton King	Berkeley Archer Queen	10	10	10	30
Berkeley Boss Bandit	Stanford B	0	10	10	20
UCSD A	Claremont A	0	10	10	20
Claremont C	Claremont B	0	10	10	20
UCLA C	UC Irvine	0	10	10	20
UCLA B	UCLA E	10	10	10	30
UCLA D	UCLA F	0	10	10	20
UC Santa Barbara	UCSD B	0	10	0	10
USC B	USC A	0	10	10	20
Ottawa B	McGill A	0	10	0	10
Ottawa A	McGill B	0	0	0	0
Ottawa D	McGill C	0	10	10	20
McGill E	Carleton A	0	10	10	20
Carleton B	Ottawa C	0	10	0	10
Waterloo C	Brock A	0	10	10	20
Guelph A	Toronto D	0	10	0	10
McMaster A	Toronto F	10	10	10	30
Toronto B	McMaster B	0	10	0	10
Toronto C	Toronto E	0	10	10	20
Toronto G	Waterloo A	0	10	0	10
McMaster C	Toronto H	0	10	0	10
Queen's A	Toronto I	0	10	10	20
Waterloo B	Toronto A	0	10	10	20
Florida A	South Florida A	0	10	10	20
UCF A	Florida B	0	10	10	20
Florida Tech A	ERAU Daytona A	0	10	10	20
CWRU B	Ohio State B	0	10	10	20
WVU B	CWRU D	0	10	0	10
Michigan State B	Kentucky	0	10	0	10
CWRU A	Louisville D	0	10	10	20
Michigan C	Michigan A	10	10	0	20
Michigan State A	Michigan D	10	10	10	30
CWRU C	Michigan State C	0	10	10	20
Louisville B	Michigan State D	0	10	10	20
Louisville A	Ohio State C	0	10	10	20
Ohio State A	Ohio State D	0	10	10	20
WVU A	Michigan B	0	10	0	10
Duke A	UNC B	0	10	0	10
NCSU A	Virginia A	0	10	10	20
Virginia Tech B	UNC A	0	10	10	20
William & Mary B	UNC D	0	10	10	20
UNC C	VCU A	0	10	10	20
Virginia Tech C	Liberty C	0	10	0	10
Virginia Tech A	William & Mary A	0	10	10	20
JMU A	Tusculum A	0	10	0	10
William & Mary C	JMU B	0	0	0	0
Columbia A	Columbia B	0	10	10	20
Lehigh A	Rowan	0	10	10	20
Rutgers A	Rutgers B	0	10	10	20
George Mason A	Maryland C	0	10	10	20
George Mason B	Maryland A	0	10	0	10
George Mason C	NYU A	0	0	0	0
Maryland B	NYU C	10	10	10	30
Princeton	Rutgers C	10	10	10	30
Johns Hopkins	Rutgers D	10	10	10	30
Stony Brook	NYU B	0	10	10	20
Vassar A	Penn	0	10	10	20
Vassar B	Lehigh B	0	10	10	20
Florida Tech B	Florida State A	0	10	0	10
Chicago A	Purdue C	0	10	10	20
Indiana B	Chicago B	0	10	0	10
Illinois Champaign	Illinois Canada	0	10	0	10
Illinois Urbana	Illinois Orange	0	0	10	10
Indiana A	Illinois Blue	0	10	10	20
WashU Grolars	Iowa B	0	10	10	20
Rose-Hulman A	Purdue B	0	10	0	10
WashU Grizzlers	Purdue A	0	10	10	20
Purdue D	William Woods University A	0	10	10	20
Iowa State	Michigan Tech	10	10	10	30
Macalester	Wisconsin A	0	10	10	20
Minnesota	Wisconsin C	0	10	10	20
St. Thomas	Wisconsin B	0	10	10	20
Boston College B	Southern Connecticut State University A	0	10	0	10
Alberta A	Washington Chinook	0	10	10	20
Arizona State A	Boise State	0	10	10	20
British Columbia B	Arizona State B	0	10	0	10
British Columbia A	Washington Steelhead	0	10	10	20
British Columbia C	Alberta B	0	10	10	20
Texas	Washington Coho	0	10	10	20
Washington Pink	Washington Chum	0	10	10	20
Washington Masu	Washington Sockeye	0	10	0	10
Harding	Central Oklahoma B	0	0	10	10
Oklahoma	Kansas State B	0	10	0	10
Central Oklahoma A	Murray State College A	0	10	10	20
Murray State College B	Tulsa A	0	10	0	10
Nebraska A	Rose State	0	10	0	10
Tulsa B	Nebraska C	0	0	10	10
Montevallo	Chipola College	0	0	10	10
Georgia Tech F	Clemson B	0	10	10	20
Alabama A	Clemson C	0	10	10	20
Georgia A	Auburn A	0	10	10	20
Georgia Tech A	Georgia Tech D	0	10	10	20
Clemson A	Georgia Tech B	10	10	10	30
Georgia Tech E	Tennessee B	0	10	10	20
Mississippi State A	Vanderbilt A	10	10	10	30
Auburn B	Sewanne	0	10	10	20
South Carolina A	Auburn C	10	10	10	30
Tennessee Tech	Emory A	0	10	10	20
Vanderbilt B	Tennessee A	0	10	10	20
York	Durham A	0	0	0	0
Durham D	Durham C	0	0	10	10
Edinburgh C	Edinburgh A	0	10	0	10
Sheffield A	Edinburgh D	0	10	10	20
Sheffield B	Durham B	0	10	10	20
Imperial A	Bristol	0	10	10	20
Cardiff	Cambridge D	0	10	0	10
Cambridge A	Cambridge E	0	10	10	20
Birmingham	Imperial B	0	10	10	20
Imperial D	Cambridge C	0	10	10	20
LSE	Cambridge B	0	10	0	10
Oxford	Southampton	0	0	0	0
Warwick	Imperial C	0	10	10	20
Cornell C	Binghamton A	10	10	0	20
Cornell A	Cornell B	0	10	10	20
Cornell D	ESF	0	10	10	20
Binghamton C	RIT A	0	10	0	10
Rochester	RIT B	0	10	10	20