You have two types of motion - translational motion and rotational motion. Force vectors cause translational motion, and torques (or turning moments) cause rotational motion. Torque links to angular acceleration and to angular velocity so of course there is also angular momentum. Yes, or course torque is important in all of Physics. Torque is just as important as force vectors. Missing from the NSW Physics syllabus is the vector definition of torque, which is a cross product vector at right-angles to the lever arm r and the force F.