Move a file: cut the file, then paste it into the new location
Copy a file: copy the file, then paste it into the new location
Move a file: the original file is removed from the source folder
Copy a file: the original file stays in the source folder
Move a file: only one version of the file exists after the action
Copy a file: two versions of the file exist after the action
Move a file: use when you want to relocate a file
Copy a file: use when you want to duplicate a file