Tension is described as the force associated with a tightly pulled string, rope, or cable. It is a pulling force, as it can only pull an object and cannot push one. When a rope is pulled tight, the tension force is transferred through the rope to the attached object. Here, the tension force balances the weight of the object. Consider a box of mass 'm' being pulled by a string at an angle theta on a smooth surface with acceleration 'a'. In this situation, the forces on the box are the gravitational pull acting downward, the normal force acting upward, and the tension force along the pulled string. The x-component of the tension is the only force acting in the horizontal direction. In the vertical direction, the y-component of tension acts upward along with the normal force, and the gravitational pull acts downward. Applying Newton's second law to the system gives the tension force exerted by the string and the normal force exerted by the surface on the box.