sentences:  To account for slowing due to friction, Leibniz claimed that heat consisted of the random motion of the constituent parts of matter — a view described by Bacon in Novum Organon to illustrate Inductive reasoning and shared by Isaac Newton, although it would be more than a century until this was generally accepted.Émilie marquise du Châtelet in her book Institutions de Physique ("Lessons in Physics"), published in 1740, incorporated the idea of Leibniz with practical observations of Gravesande to show that the "quantity of motion" of a moving object is proportional to its mass and its velocity squared (not the velocity itself as Newton taught—what was later called momentum).In 1802 lectures to the Royal Society, Thomas Young was the first to use the term "energy" in its modern sense, instead of "vis viva".