One of the first things you must learn as a new photographer is the relationship between ISO, aperture and shutter speed. Here's a little cheat-sheet to help you remember.
A Great Graphic for Understanding How ISO, Aperture, and Shutter
Understanding ISO, Aperture and Shutter Speed
Filmmaking Basics 101: ISO, Aperture, Shutter Speed Explained - Moment
Setting mode of camera showing shutter speed, f-stop (size of
A Complete Beginner's Guide to Understanding Aperture, Shutter
Exploring Aperture, Shutter speed, and ISO
Understanding Exposure — Fairway Studios
A Complete Beginner's Guide to Understanding Aperture, Shutter
The Exposure Triangle is a Pyramid
Exposure Triangle (Shutter, Aperture, ISO)
What is the Exposure Triangle — Aperture, ISO & Shutter Speed