National Seminar of Physics Education Universitas Lambung Mangkurat, Banjarmasin, Indonesia 11 September 2021 The National Seminar of Physics Education/Seminar Nasional Pendidikan Fisika (SNPF) 2021 was organized by the Physics Education Study Program, Teacher Training and Education Faculty, Universitas Lambung Mangkurat (ULM) in collaboration with the Physical Society of Indonesia (PSI), South Kalimantan branch. The SNPF covers several fields of study, including strategy, models, methods, media, and evaluation in learning physics, chemistry, biology, mathematics, physics research results, artificial intelligence, future science development, and general education.The theme raised was “Optimizing STEM Learning in Creating a Generation that is Excellent, Character, and Competitive in the Era of Society 5.0”. This seminar is a scientific forum that is very appropriate for sharing and disseminating research results and the best contribution in facing the Era of Society 5.0 by strengthening efforts to produce a generation that is Excellent, Character, and Competitive, which are great opportunities for this nation.On behalf of the committee, we would like to thank the Chancellor of Universitas Lambung Mangkurat, Dean of the Teacher Training and Education Faculty, Head of the Mathematics and Natural Sciences Major, advisory board, steering committee, all committee members, reviewers, presenters, and participants. Special thanks are also given to the Proceedings of the IOP Conference. On behalf of the SNPF 2021 committee, we would like to thank all parties for their participation in supporting this publication. We hope to see everyone at the next conference.Kind regards,Dewi Dewantara, M.Pd.Chair of the SNPF 2021List of Committee Members are available in this pdf.