| Kaon (K): A meson containing a strange quark and an anti-up (or anti-down) quark, or an anti-strange quark and an up (or down) quark. |
| Kelvin: Symbol K. The unit of absolute or thermodynamic temperature scale based upon the Celsius scale with 100 units between the ice point and boiling point of water. 0?C = 273.15K (there is no degree (?) symbol used with the Kelvin scale).
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| Killed Steel: Steel deoxidized with a strong deoxidizing agent, such as silicon or aluminum, to reduce the oxygen content to such a level that no reaction occurs between carbon and oxygen during solidification.
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| Kilobyte: A thousand bytes. Actually, usually 1024 (210) bytes. |
| Kilovolt-Amperes (kva): 1000 volt amps. |
| Kilowatt (kw): Equivalent to 1000 watts.
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| Kilowatt Hour (kwh): 1000 watthours.
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| Kinematic Viscosity: The ratio of dynamic viscosity to mass density. Kinematic viscosity is a measure of a fluids resistance to gravity flow: the lower the kinematic viscosity, the easier and faster the fluid will flow.
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| Kinematics: Study of motion of objects without regard to the causes of this motion.
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| Kinetic energy: The energy a body has by virtue of its motion. The kinetic energy is the work done by an external force to bring the body from rest to a particular state of motion |
| Knoop Hardness Test: An indentation hardness test using calibrated machines to force a rhombic-based pyramidal diamond indenter having specified edge angles, under specified conditions, into the surface of the test material and to measure the long diagonal after load removal.
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| kPa: Kilopascal; a metric measure of pressure based on force per unit area. (1 kPa = 4.01 inches of water). |
| KRISS: Korean Research Institute of Standards and Science |
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