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Door KnobIntroduction: Almost everywhere around you, you see the concept of torque, or a measure of how much that a force acting upon an object causes the object to rotate about an axis, a pivot, or a fulcrum. Torque is dependent on the length of the lever arm that connects to the point that the force is applied, the force applied, and the angle between the force vector and the lever arm. This is summarized by the equation shown below:

[math]tau=Fxxd[/math], where [math]tau[/math]=torque, F=force, and d=perpendicular of force from the axis of rotation

The magnitude of torque is given by the following equation:

[math]tau = Fdsintheta[/math]

Torque can be applied to a variety of everyday situations, including the torque associated with turning a doorknob. Other real-world applications of torque involve the torque associated with turning a lug nut with a wrench and the torque associated with turning a steering wheel. In every scenario involving torque, an increase in distance or force can lead to increased torque. Additionally, an increase in the sine value of the angle will lead to an increase in the torque.

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