I skimmed through the user manual for your camera and it has a lot of good information in it. If you only read the first chapter you’ll “understand what light, composition, and all the other terms mean.” I don’t know what manual shipped with your camera, but the online one is here: http://downloadcenter.samsung.com/content/UM/201303/20130306135004922/NX1000_English.pdf
The great thing is it’s all about your camera.
I learned photography basics initially by watching videos by Ben Long. He has a video series on Lynda.com (a great resource for learning anything having to do with electronics or computers) called Foundations of Photography. It is several hours of instruction, but well worth the time. Lynda.com is a pay service but not expensive, and sometimes they have trial periods. Most educational institutions provide a group membership for staff and students alike, so you might want to check that too.