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I.5.1. Physical phenomena

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Physical phenomena are the transformations of a body as a result of which the composition of the substance of which the body is made remains unchanged.

📝 Examples of physical phenomena:

  • All the phenomena that occur with the change of state of aggregation:

    • Melting (the transition of the substance from a solid state to a liquid state, by heating);
    • Solidification (the transition of the substance from a liquid state to a solid state, by cooling);
    • Vaporization (the transition of the substance from a liquid state to a gaseous state, by heating);
    • Condensation (the passage of the substance from a gaseous state to a liquid state, by cooling);
    • Sublimation (the transition of the substance from a solid state to a gaseous state, by heating);
    • Desublimation (the passage of the substance from a gaseous state to a solid state, by cooling).

  • Deformation (change of shape);

  • Movement (change of position relative to the landmark);

  • Heating / Cooling (temperature change);

  • Expansion / Contraction (change in temperature and volume);

  • Coloring (color change);

  • Crushing (changing the size of the crystals);

  • The passage of electric current through a circuit;

  • Interaction of magnets or electrified bodies (attraction or repulsion);

  • Reflection and Refraction of light (the return of light in the first medium, respectively the passage of light in the second medium, with a change in the direction of propagation);

  • Rainbow formation (decomposition of white light into rainbow colors), etc.