Stud welding uses a type of flux called a ferrule, a ceramic ring which concentrates the heat generated, prevents oxidation and retains the molten metal in the weld zone. The ferrule is broken off of the fastener after the weld is completed.
Inertia is a nice and easy physics lessons for kids and children. In physics, inertia is part of Isaac Newtonâs First Law of Motion simply stating that a particular object at rest will stay in that state unless otherwise a force is put on it for the object to move.
From that aspect, let us try to find the definition of inertia. As per that law, an object continues to be in the state of rest or continues to be in the state of uniform motion in a straight line unless it is acted upon by an external agency, called a force.