| Kelvin (K): |
Unit of measurement on the absolute temperature scale, used to describe the color content of continuous spectrum light sources. |
| kHz - kilohertz: |
The frequency of a radio carrier wave measured in thousands of cycles per second. 1 kHz = 1,000 Hertz. |
| Kilo: |
Stands for the letter K in the phonetic alphabet. |
| Kilowatt: |
Unit of 1000 watts. Used to measure the power of an electrical light source. |
| Knot (kt): |
one nautical mile per hour (never one knot per hour), the standard unit of aviation speed measurement. One knot equals 1.1515 mph; one nautical mile equals 6,080 feet. A nautical mile is one minute of one degree of latitude. |
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