Kilometers per hour (kph, km/h)
Kilometers per hour (kph or km/h) is a unit of speed. Kph is a unit commonly used to express the speed of vehicles, such as cars and trains.
Micons per second (μm/s)
Microns per second (μm/s) is a unit of speed. One meter is equivalent to 1,000,000 microns and this unit is the number of microns travelled in one second.