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  2. Ductility - Wikipedia

    en.wikipedia.org/wiki/Ductility

    Ductility refers to the ability of a material to sustain significant plastic deformation before fracture. Plastic deformation is the permanent distortion of a material under applied stress, as opposed to elastic deformation, which is reversible upon removing the stress.

  3. Ductility (Earth science) - Wikipedia

    en.wikipedia.org/wiki/Ductility_(Earth_science)

    Ductility is a material property that can be expressed in a variety of ways. Mathematically, it is commonly expressed as a total quantity of elongation or a total quantity of the change in cross sectional area of a specific rock until macroscopic brittle behavior, such as fracturing, is observed.

  4. Psychology - Wikipedia

    en.wikipedia.org/wiki/Psychology

    Psychology is the scientific study of mind and behavior. [1] [2] Its subject matter includes the behavior of humans and nonhumans, both conscious and unconscious phenomena, and mental processes such as thoughts, feelings, and motives. Psychology is an academic discipline of immense scope, crossing the boundaries between the natural and social ...

  5. Brittleness - Wikipedia

    en.wikipedia.org/wiki/Brittleness

    Brittle fracture in glass Brittle fracture in cast iron tensile testpieces. A material is brittle if, when subjected to stress, it fractures with little elastic deformation and without significant plastic deformation.

  6. Malleability of intelligence - Wikipedia

    en.wikipedia.org/wiki/Malleability_of_intelligence

    Malleability of intelligence describes the processes by which intelligence can increase or decrease over time and is not static. These changes may come as a result of genetics, pharmacological factors, psychological factors, behavior, or environmental conditions.

  7. Toughness - Wikipedia

    en.wikipedia.org/wiki/Toughness

    In materials science and metallurgy, toughness is the ability of a material to absorb energy and plastically deform without fracturing. [1] Toughness is the strength with which the material opposes rupture. One definition of material toughness is the amount of energy per unit volume that a material can absorb before rupturing.

  8. Fluid and crystallized intelligence - Wikipedia

    en.wikipedia.org/wiki/Fluid_and_crystallized...

    The concepts of fluid intelligence (g f) and crystallized intelligence (g c) were introduced in 1943 by the psychologist Raymond Cattell. [1] [2] [3] According to Cattell's psychometrically-based theory, general intelligence (g) is subdivided into g f and g c.

  9. Physical property - Wikipedia

    en.wikipedia.org/wiki/Physical_property

    Some physical properties are qualitative, such as shininess, brittleness, etc.; some general qualitative properties admit more specific related quantitative properties, such as in opacity, hardness, ductility, viscosity, etc. Physical properties are often characterized as intensive and extensive properties. An intensive property does not depend ...