Consider a pottery wheel. If a force is applied on the wheel’s edge, away from the center, the pottery wheel rotates easily. It shows that to rotate an object easily, force should be applied at a distance from the rotational axis. The displacement vector from the rotational axis to the application point of the force is called the lever arm. Torque is the cross product of this lever arm and the applied force. Therefore, it is perpendicular to both the force and the lever arm. If a force vector is at an angle θ to the position vector, the magnitude of the torque is calculated using the component of the force perpendicular to the lever arm, which is then equal to rFsinθ. If the right-hand fingers curl in the direction of the object’s rotation, the thumb shows the direction of the torque. Conventionally, if the object's rotation is counterclockwise, then the torque is positive. Similarly, if the object's rotation is clockwise, the torque is then considered negative.