A stop action picture is when you capture someone or something in mid action and you "freeze" them. It then allows you to see a person in. frozen state, which makes a very interesting photo. This image used natural lighting.

A blur picture is taken when a object is moving while the camera is still. The camera also has to have a slow shutter speed and wide F-Stop. To take this picture I stood still while Ava threw the leaves into the air. This picture used natural light.

Panning is a technique where the camera is moved to follow a moving subject, keeping it in the same position in the viewfinder. It is more effective when the subject is moving across the picture than when it is moving towards (or away from) the camera. It produces a relatively sharp subject seen against a blurred background and can be very effective in giving an impression of movement and speed.