When the app that you would like to terminate is open:


Press and hold the side button and wait until the shut down screen appear. Then let go of the side button.
Press and hold the side button again until the home screen appears.


Your formerly active app has now been terminated.

PS: The side button is the button below the Digital Crown.

How do I force-quit an individual app on Apple Watch?
I need to SSH my Pi over wifi but because it is a model A board (using a usb hub is not possible - ever) and I have no ethernet, i can't configure the Pi to connect to my secured wifi network.  I want to have the SD card plugged into my laptop and I want to edit a file with the wifi configuration information in it so my Pi will connect to my network automatically at start-up so I can then SSH it to get control. I know how to enable SSH on a headless system thanks to this answer.

Edit.
Ive been searching around and I'm wondering if I'm able to just edit the file /etc/network/interfaces while the SD card is in my PC and put in all the network ssid, psk and wlan0 stuff in it.  Will this work? Thanks
