What is this for ?
If you are having difficulties with the way a particular App is running, it may be necessary to “force quit”. These steps will show you how.
1. Double click the Home button to show your most recently used apps.
2. Swipe to the left or right until you see the app you wish to force quit, and swipe upwards on the app to quit it.
The following video demonstrates this feature on an iPhone, which behaves identically to an iPad.