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Welcome to our Physics lesson on The Meaning of Torque, this is the first lesson of our suite of physics lessons covering the topic of Torque, you can find links to the other lessons within this tutorial and access additional physics learning resources below this lesson.
By definition, "Torque is a non-zero resultant moment of force usually produced by a single force or a couple of forces that help each other when trying to rotate a system around a fixed point."
Torque can be either produced by a single force of by a couple of forces as long as they are able to create rotation in the system. As you see, the meaning of torque is very close to that of moment of force. The most important difference between these two concepts lies in the fact that torque is a movement effect whereas moment of force is a static effect. This means torque is used where there is rotation involved whereas moment of force is used where there is no rotation (when there is equilibrium).
You have reached the end of Physics lesson 6.9.1 The Meaning of Torque. There are 2 lessons in this physics tutorial covering Torque, you can access all the lessons from this tutorial below.
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