Not if you consider the energy expended to grip or engage the lever--this does account for a minimum amount of lost efficiency
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Fulcrum is the point that a lever rests or is supported.
A lever is like a pole with a fulcrum. Here is a picture: ---------------------- ^ the triangle, which is supposed to be the fulcrum, is supposed to be attached to the k=line, which is the lever. Hope I helped! --Contributor ; )
Fulcrum * * * * * The fulcrum is the fixed point. The bar is a lever. Admitedly, it would help if questions were asked properly.
load arm, effort arm, load, effort, fulcrum!
That's known as a lever.