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===== The Three Fundamental Principles of Mechanics =====
===== The Three Fundamental Principles of Mechanics =====
A major focus of introductory mechanics is understanding three fundamental principles of how objects interact (though they may have been called by different names): [[183_notes:momentum_principle|the momentum principle]], [[183_notes:define_energy#the_first_law_of_thermodynamics_the_energy_principle|the energy principle]], and [[183_notes:l_principle|the angular momentum principle]]. These principles are central to the study of physics broadly, not simply mechanics; they are [[183_notes:fundamental_principles|deep truths about our universe]], which seem to hold in every observation we make and experiment we conduct.
A major focus of introductory mechanics is understanding three fundamental principles of how objects interact (though they may have been called by different names): [[183_notes:momentum_principle|the momentum principle]], [[183_notes:define_energy#the_first_law_of_thermodynamics_the_energy_principle|the energy principle]], and [[183_notes:l_principle|the angular momentum principle]]. These principles are central to the study of physics broadly, not simply mechanics; they are [[183_notes:fundamental_principles|deep truths about our universe]], which seem to hold in every observation we make and experiment we conduct.