gravity vs intensity

gravity

noun
  • The state or condition of having weight; weight; heaviness. 

  • The lowness of a note. 

  • The state or condition of being grave; seriousness. 

  • Specific gravity. 

  • Gravitation, the universal force exercised by two bodies onto each other. 

  • The force at the Earth's surface, of the attraction by the Earth's masses, and the centrifugal pseudo-force caused by the Earth's rotation, resulting from gravitation. 

intensity

noun
  • The degree of strength. 

  • Time-averaged energy flux (the ratio of average power to the area through which the power "flows"); irradiance. 

  • Can mean any of radiant intensity, luminous intensity or irradiance. 

  • Synonym of radiance. 

  • The quality of being intense. 

  • The severity of an earthquake in terms of its effects on the earth's surface, and buildings. The value depends on the distance from the epicentre, and is not to be confused with the magnitude. 

How often have the words gravity and intensity occurred in a corpus of books? (source: Google Ngram Viewer )