We present an exploratory study conducted with 160 engineering students in order to characterize anddescribe the representations that share about Physics. We used a qualitative and quantitative methodologywith an interpretative approach. We applied a hierarchical evocation test and analyzed the content andstructure of the representation. The results suggest a representative process in progress, characterized bycentral elements of the domain of mechanics and concepts relating to the vision of

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... ence that began tobe introduced in the representational fi eld. The results are discussed in the light of those obtained in otherstudies and the research theoretical and methodological decisions.