The internal energy of a body is:

  1. the gravitational energy of the body
  2. the sum of the random kinetic and potential energies of its molecules
  3. the heat it contains
  4. only the kinetic energy of the whole body
Answer

B) the sum of the random kinetic and potential energies of its molecules

Internal energy is microscopic. SLO P-11-C-02 · Understanding

Physics MCQ · More Kinetic Theory and First Law of Thermodynamics MCQs · Practise