Shutter Speed and Flash

Below are examples showing how the shutter speed affects the ambient exposure when using flash on camera.  In this example the aperture was constant at f.4, and I adjusted the shutter speed from one second to 1/200s, the fastest flash sync on my camera.

1sec f.4

 1/2 sec f.4

 1/4 sec f.4

 1/8 sec f.4

 1/15 sec f.4

 1/30 sec f.4

 1/60 sec f.4

 1/125 sec f.4

 1/200 sec f.4