Yes, there is always a net force when turning. This is because turning involves changing the direction of motion, which requires a force to act on an object.
Net force is the overall force acting on an object, taking into account the direction and magnitude of all the individual forces acting on it.
Turning affects net force by changing the direction of the object's motion. This means that the net force will also change, since it is dependent on the direction of motion.
The net force when turning is determined by the mass of the object, the object's velocity, and the magnitude and direction of the force acting on the object.
Yes, it is possible for the net force to be zero when turning. This can occur when the forces acting on the object are balanced, meaning they cancel each other out and there is no resulting net force.