Relacionar Columnas Simple and complex machinesVersión en línea Revieuw por Mehdi Nolte 1 2 3 4 5 6 7 8 9 10 A lever is a rigid bar on a support called fulcrum which allows lifting or moving heavy objects using less force. In second class levers the fulcrum is located at one end and near the resistance. In first class levers, the fulcrum is between the applied force and the resistance An inclined plane is any inclined flat surface that allows an object to be lifted In third-class levers, the fulcrum is at one end and the and near the force.
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