बल आघूर्ण (Torque) 

• Torque is the measure of the force that can cause an object to rotate about an axis.
•  Force is what causes an object to accelerate in linear kinematics. 
• Unit : N-m
• Similarly, torque is what causes an angular acceleration. 
• Hence, torque can be defined as the rotational equivalent of linear force. 
• The point where the object rotates is called the axis of rotation.
• In physics, torque is simply the tendency of a force to turn or twist.
• Different terminologies such as moment or moment of force are interchangeably used to describe torque.