Question
O’Neill and Stachowiak studied the “extraordinary” form of this property in synovial fluid. For 10 points each:
[10h] Name this property of non-Newtonian substances that allows fluids to increase in thickness when shaken.
ANSWER: rheopecty [or rheopexy; or rheopectic fluids; accept inverse thixotropy or inverse thixotropic fluids; reject “thixotropy” or “thixotropic fluids”]
[10e] When a fluid is thixotropic or rheopectic, this quantity is time-dependent. This quantity is a fluid’s resistance to flow.
ANSWER: viscosity
[10m] Dividing the shear stress over the shear rate gives a form of viscosity named for this adjective. Unlike its counterpart, this quantity specifically refers to the resistance of movement from one fluid layer to another.
ANSWER: dynamic viscosity
<Ezra Santos, Physics>
Summary
| 2024 Penn Bowl CWRU | 11/02/2024 | Y | 4 | 10.00 | 100% | 0% | 0% |
| 2024 Penn Bowl Chicago | 11/02/2024 | Y | 8 | 15.00 | 100% | 38% | 13% |
| 2024 Penn Bowl Harvard | 10/26/2024 | Y | 4 | 17.50 | 100% | 75% | 0% |
| 2024 Penn Bowl Mainsite | 11/02/2024 | Y | 3 | 13.33 | 100% | 33% | 0% |
| 2024 Penn Bowl UK | 10/26/2024 | Y | 5 | 10.00 | 100% | 0% | 0% |
Data
| Illinois C | Notre Dame A | 0 | 10 | 0 | 10 |
| Northwestern B | Indiana B | 0 | 10 | 0 | 10 |
| Chicago A | Northwestern A | 10 | 10 | 10 | 30 |
| Illinois B | Notre Dame B | 0 | 10 | 10 | 20 |
| Notre Dame C | Purdue | 0 | 10 | 0 | 10 |
| SIUE | Chicago B | 0 | 10 | 0 | 10 |
| WUSTL | Minnesota | 0 | 10 | 0 | 10 |
| Illinois A | Indiana A | 0 | 10 | 10 | 20 |