What is difference bending moment and shear force ?

Question

Accepted Answer

Bending moment is the internal resistance to bending in a beam, while shear force is the internal resistance to sliding in a beam.

Bending moment is a moment that causes a beam to bend. It is calculated as the product of the force applied and the distance from the point of application.
Shear force is a force that acts parallel to the cross-section of the beam. It tends to slide one part of the beam over the other.
Bending moment is responsible for the curvature of a beam, while shear force is responsible for the deformation of the beam.
In a simply supported beam with a point load at the center, the bending moment is maximum at the center and zero at the supports, while the shear force is constant along the beam.

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