"Dynes" redirects here. For the president of the University of California system, see Robert C. Dynes. In physics, the dyne (symbol "dyn", from Greek δύναμις (dynamis) meaning power, force) is a unit of force specified in the centimetre-gram-second (CGS) system of units, a predecessor of the modern SI. One dyne is equal to exactly 10 micronewtons. Further, the dyne can be defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared".
- 1 dyn = 1 g·cm/s² = 10−5 kg·m/s² = 10 µN
The dyne per centimetre is the unit usually associated with measuring surface tension. For example, the surface tension of distilled water is 72 dyn/cm at 25°C (77°F).[1]
References
- ^ http://www.dow.com/PublishedLiterature/dh_00e5/09002f13800e5fdb.pdf?filepath=/PublishToInternet/InternetDOWCOM/surfactants/pdfs/noreg/119-01514.pdf&fromPage=BasicSearch
Units of force
|
newton
(SI unit) |
dyne |
kilogram-force,
kilopond |
pound-force |
poundal |
| 1 N |
≡ 1 kg·m/s² |
= 105 dyn |
≈ 0.10197 kp |
≈ 0.22481 lbf |
≈ 7.2330 pdl |
| 1 dyn |
= 10−5 N |
≡ 1 g·cm/s² |
≈ 1.0197×10−6 kp |
≈ 2.2481×10−6 lbf |
≈ 7.2330×10−5 pdl |
| 1 kp |
= 9.80665 N |
= 980665 dyn |
≡ gn·(1 kg) |
≈ 2.2046 lbf |
≈ 70.932 pdl |
| 1 lbf |
≈ 4.448222 N |
≈ 444822 dyn |
≈ 0.45359 kp |
≡ gn·(1 lb) |
≈ 32.174 pdl |
| 1 pdl |
≈ 0.138255 N |
≈ 13825 dyn |
≈ 0.014098 kp |
≈ 0.031081 lbf |
≡ 1 lb·ft/s² |
| The value of gn as used in the official definition of the kilogram-force is used here for all gravitational units. |
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