Does the Culling System also cull Physics and Kinematics That is no Longer in view

Hi I Have a Technical question regarding Culling.
I Have a map with a large industrial complex with water outside with object floating in the water.
There are roof fans spinning and other kinematic classes running.
I Wanted to know if all these fans and physics are running continuously even when the player is not present or is the physics and the kinematics stopped when not near the player or out of sight.??

If these are not stopped do we as level designers need to turn them on and off using triggers as the players move around the map.??? including the physics based floating objects?? or is there some other system that does this.?

Thanks In Advance.