Uth Posted August 25, 2008 Share Posted August 25, 2008 Hello everybody! Is there any difference between a torque and a moment? Both are forces multiplied by the distance. Thanks! Link to comment Share on other sites More sharing options...
Pete Posted August 25, 2008 Share Posted August 25, 2008 Hello everybody! Is there any difference between a torque and a moment? Both are forces multiplied by the distance. Thanks! I think that some people use those terms interchangably. I prefer the term torque myself. Pete Link to comment Share on other sites More sharing options...
CaptainPanic Posted August 26, 2008 Share Posted August 26, 2008 Wikipedia's page about torque starts with the sentence: "A torque (τ) in physics, also called a moment, ..." http://en.wikipedia.org/wiki/Torque Link to comment Share on other sites More sharing options...
Uth Posted August 26, 2008 Author Share Posted August 26, 2008 Thanks a lot for help! Link to comment Share on other sites More sharing options...
Kyrisch Posted August 26, 2008 Share Posted August 26, 2008 Hmm, but 'moment' has a completely different article. Link to comment Share on other sites More sharing options...
booker Posted August 27, 2008 Share Posted August 27, 2008 (edited) Hello everybody! There's also a quantity called a couple. Both a torque wrench and a rotating motor in normal use are designed to develope a couple, ranther than a torque. http://en.wikipedia.org/wiki/Couple_(mechanics) I really think a couple should be tought before torque. It more naturally corrisponds to our experience of what it take to get something spinning. Applying a torque about some center of mass will have the combined effect of both spinning the object and pushing it to the side. Edited August 27, 2008 by booker Link to comment Share on other sites More sharing options...
Uth Posted August 27, 2008 Author Share Posted August 27, 2008 Maybe torque is a special case of moment. The following definition is from "Worldbook encyclopedia": Moment, in physics, is the product of a quantity multiplied by a particular distance from a fulcrum, or axis. Moment of force, also called torque, is an example. Link to comment Share on other sites More sharing options...
booker Posted August 28, 2008 Share Posted August 28, 2008 (edited) Maybe torque is a special case of moment. The following definition is from "Worldbook encyclopedia": Moment, in physics, is the product of a quantity multiplied by a particular distance from a fulcrum, or axis. Moment of force, also called torque, is an example. Well, they have the same units. A couple is independent of the choice of origin. http://en.wikipedia.org/wiki/Couple_(mechanics) Edited August 28, 2008 by booker Link to comment Share on other sites More sharing options...
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