Question: the sum of the kinetic and potential energies of all the particles in a system is called its
[{'answer': 'Internal energy', 'provenance': [{'wikipedia_id': '9649', 'title': 'Energy', 'start_paragraph_id': 82, 'start_character': 11, 'end_paragraph_id': 82, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Thermodynamics.\n'}]}, {'provenance': [{'wikipedia_id': '9649', 'title': 'Energy', 'start_paragraph_id': 83, 'start_character': 0, 'end_paragraph_id': 83, 'end_character': 456, 'bleu_score': 0.9731482306711111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6590732491851546144}, 'section': 'Section::::Thermodynamics.:Internal energy.\n'}]}]