Abstract
The law of conservation and transformation of energy proves one of the fundamental laws of nature. In mechanics, this law is defined as the law of conservation of mechanical energy. It states that the total mechanical energy of a closed system of bodies, where solely conservative forces interact, remains constant. Consideration is given to the methodical recommendations related to implementing laboratory experiments for the experimental verification of the law of the energy conservation in a closed system. The paper is aimed at theoretically substantiating the use of innovative techniques of carrying out laboratory experiments in physics under the present-day conditions of training military students of higher military educational establishments which will contribute to developing their professional competence under the conditions of the fundamental and professional training integration.