The correct abbreviation in the SI system is kJ, that is small k, large J. It is the convention to use capital letters for units named after real people. This includes A for Ampere, K for Kelvin (degrees absolute), N for Newton, J for Joule, W for Watt, Pa for Pascal, Hz for Hertz, V for Volt, F for Farad, H for Henry.
Prefixes seem not so logical. Thus we use small k for thousand times, but large M for million times, small m for one thousandth, and greek mu for one millionth!
The abbreviation for kilojoules is kJ.
I think it is killjoy or kilojoules or probably King James.
The correct abbreviation for "I have" is I've.
correct abbreviation for sounds
HQ is the correct abbreviation.
The correct abbreviation for the word Sunday is "Sun."
To convert joules to kilojoules, divide the number of joules by 1000. For example, to convert 5000 joules to kilojoules, you would divide 5000 by 1000 to get 5 kilojoules.
The abbreviation for Mile is "Mi"
The correct abbreviation for liters is "L".
The correct abbreviation for court is "ct."
The correct abbreviation for October is: Oct.
The correct abbreviation for Pronunciation is "pron."