Shutter Speed is the speed at which the cameras shutter opens and closes. There are two types - Slow and Fast Shutter Speed. When using Slow Shutter Speed your images will result in being a little blurry and with a Fast Shutter Speed your images will result in being blur free. Shutter Speed requires setting the camera on a F stop of either f/2 - 5.6 or f/16 - f/22. With the use of this you can photograph fast moving things such as trains and other things in motion. It allows you to create different effects on your images.
Slow Shutterspeed
Slow shutter speed is when light is exposed for a shorter time to the camera lens.
Fast Shutterspeed
Fast shutter speed is when light is exposed to the camera lens for longer.