Tag Archives: Moment

Moments and Couples


 Model Description Introduce the concept of Moment and couples to your students by providing hands-on examples that they can relate to.  Demonstrate how levers use the concept of moment to provide a mechanical advantage.  This demonstration should take 5-10 minutes. Engineering Principle The Moment caused by a force about any point is defined by the […]

Lug Wrench vs. Breaker Bar


 Model Description Introduce Varignon’s theorem to students as one way to determine the moment about a point.  Show how moments are free vectors. This demonstration should take 10 minutes. Engineering Principle Varignon’s Theorem states that the moment of a force is equal to the sum of the moments of that force’s components about the same […]