What is kinematic physics body?

I see this in physics body reference

Simulate Physics
If true, this body will use simulation. If false, will be ‘fixed’ (ie kinematic) and move where it is told.

Next I see this image

But if I set physics velocity to anything with simulate physics disabled then nothing happens at all!

So what is the code trying to achieve there and what does kinematic means in this context?

Kinematic means something like a animBP will drive it, or code, its moved where its told and not just fall down based on gravity.

Ina very basic half wrong nut-shell.