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A comparative review of the different systems of units that are most usual in electromagnetism leads to the proposal of a new system of units. In this system, the gravitational constant acquires the role of an interaction constant, both for gravitational and electromagnetic interaction, as a result of a redefinition of electric charge. In this way, the new system of units extends in a natural manner...
The aim of this research was to evaluate and analyse alternative conceptions in students' understanding of the propagation of sound waves. The study was carried out in Barcelona (Spain) and involved first-year chemical engineering students.
Some years ago, it was believed that the learning process would eventually become mostly virtual. ICT tools were therefore designed with this scenario in mind. Nevertheless, today's learning process is still predominantly face-to-face; at most, we have seen a shift towards blended learning. Today we are in the process of incorporating ICT tools both inside and outside of the classroom. In this paper,...
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