J.Vila; C.J. Sierra
Description:
In this particular work the realisation of different demonstratives researches are propose, through them we can standthe base for the explanation of the essence of the first law of Newton, the difference between inertia and inertness, tofinish with the introduction of mass concept. This experiments are very simple and any one may have access to the, inother words, this experiments are real cheap economical speaking, but of a very great value from pedagogical point ofview.