A questionnaire was designed, based on a previous study of science teachers’ concept image of energy, in order to diagnose the awareness of students, science teachers and physics teachers regarding aspects of energy that are rarely addressed in the teaching context. The questionnaire covers such aspects as the relativistic nature of kinetic energy,  that the direction of the transfer of energy is frame of reference dependant, that change in the value of energy always involve interaction and depends on the characteristics of all the systems that interact and that changes in the value of energy of an object or system can be determined by measurement without specifying the initial and final values of the energy. Failure to recognize these aspects may lead to contradiction with the energy conservation law and thus may be regarded as misconceptions. We employ the questionnaire to study students’ and teachers’ knowledge with this respect. The preliminary findings indicate that teachers and students, exhibit difficulties in these aspects. We will present some examples of our findings.