| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 2C30.00 | Viscosity | | |
| 2C30.10 | viscosity disc | PIRA 1000 | |
| 2C30.10 | viscosity disc | M-62 | A horizontal disc is hung on a single thread and a second disc is spun below it causing deflection. |
| 2C30.11 | viscosity disc | M-61 | A disc is spun between two parallel plates of a platform balance and the deflection is noted. |
| 2C30.12 | viscosity disc | M-56 | A metal sheet and a disc are mounted parallel in a container of fluid. Rotate the disc and observe the displacement of the sheet by projection. |
| 2C30.13 | viscosity - viscosimeter | M-55 | Coaxial cylinders are separated by a fluid. As the outer cylinder is rotated, the drag induced motion of the inner cylinder is observed by optical lever magnification. |
| 2C30.15 | pulling an aluminum plate | 17-3.1 | Use a string and pulley to a mass to pull an aluminum plate out of a viscous fluid ( GE Silicone Fluid, SF-96/10,000). |
| 2C30.20 | viscocity in capillary | AJP 33(10),848 | A Mariotte flask with a capillary out on the bottom permits varying the pressure at cm of water. |
| 2C30.25 | viscosity of oil | PIRA 1000 | |
| 2C30.25 | viscosity of oil | Fm-2 | Invert several sealed tubes filled with oil. Air bubbles rise. |
| 2C30.25 | oil viscosity | Disc 14-06 | Quickly invert tubes of oil and watch the bubbles rise to the top. |
| 2C30.30 | temperature and viscosity | 17-3.3 | Tubes filled with motor oil and silicone oil are inverted at room temperature and after cooling with dry ice/alcohol. |
| 2C30.30 | viscosity and temperature | M-57 | Rotate a cylinder of castor oil in a water bath on a turntable. Heated from 5-40 C, the viscosity falls 15:1. |
| 2C30.45 | termimal velocity - drop balls | Mb-32 | Precision ball in a precision tube. |
| 2C30.50 | terminal velocity in water, glycerin | PIRA 500 | |
| 2C30.50 | terminal velocity in water, glycerin | 2C30.50 | Drop balls in large 1 meter test tubes, one filled with water, the other with glycerine. |
| 2C30.50 | terminal velocity - drop balls | Fm-1 | A steel ball is dropped into a graduate filled with oil. |
| 2C30.50 | viscous drag | Disc 14-02 | Steel, glass, and lead balls are dropped in a tall cylinder filled with glycerine. |
| 2C30.51 | terminal velocity - diameter | 17-4.1 | Steel balls of different diameters are dropped in glycerine. |
| 2C30.52 | terminal velocity - diameter | 17-4.3 | Three steel balls of different diameters are sealed in a 4' tube. Illuminate with a lamp at the bottom. |
| 2C30.53 | terminal velocity - specific gravity | 17-4.2 | Four balls of the same diameter with carefully adjusted specific gravity are dropped in glycerine. |
| 2C30.55 | ball drop | PIRA 1000 | |
| 2C30.55 | terminal velocity - styrofoam ball | AJP 34(4),xvii | A 2" dia. styrofoam ball reaches terminal velocity in 5 1/2 m. |
| 2C30.55 | ball drop | Disc 14-03 | Several balls including styrofoam balls of three diameters are dropped four meters. Use stop frame and take data. |
| 2C30.56 | terminal velocity - dylite beads | AJP 35(2),xx | Dylite beads reach terminal velocity quickly in water, and when expanded by heating in boiling water, are also useful in air. |
| 2C30.60 | terminal velocity - styrofoam | PIRA 500 | |
| 2C30.60 | terminal velocity - styrofoam | 2C30.60 | Drop styrofoam half round packing pieces. |
| 2C30.65 | terminal velocity coffee filters | PIRA 1000 | |
| 2C30.65 | terminal velocity coffee filters | 2C30.65 | Drop a coffee filter and it descends with low terminal velocity. Crumple one and drop it. |
| 2C30.65 | air friction | Disc 14-01 | Drop crumpled and flat sheets of paper. |