Learn how to say Energetics correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word energetic:
1showing or involving great activity or vitality:
moderately energetic exercise
2 Physics relating to or characterized by energy (in the technical sense):
mid 17th century (in the sense ‘powerfully effective’): from Greek energētikos, from energein ‘operate, work in or upon’ (based on ergon ‘work’)