# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
K
Kelvin scale: Temperature scale where ‘absolute zero’ is defined as 0 K (zero Kelvin).
kilowatt hour (kW.h): An energy unit commonly used for billing households on a quarter yearly basis. 1 kW.h equals 3.6 million joules of energy.
kinetic energy: The energy of an object due to its speed and mass.