18 Online Communities for Physics
Updated 5/16/2026
r/PhysicsStudents
on reddit
A place for physics students of any level to discuss the intricate profoundness of the universe.138K members
Forum8 views / month
Physics Playground
on discord
An inclusive and academic-focused community welcoming learners and helpers at all levels for physics discussions and academic preparation.68K members
Chat15 views / month
Basic Physics
on facebook
The mission of this "Scientific Group" is to present you with highly educational posts of physics and domains of it's major fields. The principles in the natural science field of physics and it's sphere of expertise, will include classical mechanics, thermodynamics and statistical mechanics, electromagnetism and electronics, relativity, quantum mechanics, string theory, quantum gravity, and Loop quantum gravity, optics, and atomic, molecular, and optical physics, condensed matter physics, high energy/particle physics and nuclear physics.2.0M members
Forum14 views / month
MERLOT
MERLOT (Multimedia Educational Resource for Learning and Online Teaching) is a free and open online community of educators and learners that provides access to a vast collection of curated educational resources. The Physics section of MERLOT offers a wide range of resources for physics education. These resources include online textbooks, simulations, videos, interactive learning materials, and other tools that can be used to enhance physics instruction and learning.202K members
ForumPerks7 views / month
Wolfram Community
The Wolfram Community is an online platform created by Wolfram Research, the company behind Wolfram|Alpha and Mathematica. It serves as a hub for users to share knowledge, ask questions, and collaborate on projects related to various fields, including physics.35K members
ForumNewsletter3 views / month
Quantum Physics
on linkedin
LinkedIn group that allows you to exchange Ideas and knowledge about Quantum Physics, on a scientific level. Understand Quantum Physics and in general the nature of the Universe, by contributing with new discussions and technically informative posts on already opened discussions.61K members
Forum5 views / month
Physics Stack Exchange
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics and astronomy. It's built and run as part of the Stack Exchange network of Q&A sites.Forum8 views / month
Theoretical Physics
on linkedin
A forum for Theoretical Physics. A platform to discuss ideas, thoughts and processes in Theoretical Physics.42K members
Forum5 views / month
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Institute of Physics (IOP)
The Institute of Physics (IOP) is the professional body and learned society for physics in the UK and Ireland, with an active role in promoting co-operation in physics around the world. Become a member and join a vibrant community of people who share your passion for physics.21K members
ForumApplyEventsJobsPaidCourses2 views / month
Physics Forums
Physics Forums aims to provide a community for students, scientists, educators or hobbyists to learn and discuss science as it is currently generally understood and practiced by the professional scientific community. Physics is the main focus but also discusses other STEM fields including engineering, chemistry, biology, mathematics, etc. Physics and math homework help is available for students.200K members
ForumPerksNewsletterCourses7 views / month
r/Physics
on reddit
For physicists and physics students. See the rules before posting, and the subreddit wiki for common questions. Basic homework questions are not allowed.3.2M members
Forum12 views / month
Physics Help Forum
Physics forum for students, teachers, engineers, scientists - STEM, Classical Physics, Modern Physics, Applied Physics, Homework Help.Forum6 views / month
Mathematics and Physics
on quora
The space is all about mathematics and physics, the two branches of science that are responsible for development of the world.1.0M members
Forum5 views / month
PhysicsGRE.com
PhysicsGRE.com is a website dedicated to providing resources and information for individuals preparing for the Physics GRE (Graduate Record Examination). It offers various resources to help students prepare for the exam. These include practice exams, sample questions, study guides, and discussion forums where students can ask questions and interact with each other. The website also provides information about the structure of the exam, scoring, registration, and other relevant details.11K members
Forum3 views / month
APlusPhysics.com
APlusPhysics.com is a website that provides resources and educational materials for students studying physics. On APlusPhysics.com, you can find a range of resources such as video tutorials, practice problems, study guides, and interactive simulations. The community section of APlusPhysics.com is an online forum where students and educators can interact, ask questions, and engage in discussions related to physics and science education.3K members
ForumWonders of physics
on facebook
A group dedicated to discussing and sharing fascinating aspects of physics. Members may share interesting physics concepts, articles, videos, news, experiments, and engage in discussions related to the wonders and marvels of the field of physics.15K members
Forum7 views / month
r/AskPhysics
on reddit
r/AskPhysics is a subreddit specifically focused on physics-related questions and discussions. It serves as a space where Reddit users can ask questions about physics, seek explanations, and engage in conversations related to the subject. The community consists of physics enthusiasts, students, academics, and professionals who contribute their knowledge and expertise to help answer questions and provide insights.1.6M members
Forum2 views / month
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The Physics Grove
The Physics Grove was first introduced for students to revise and prepare for Physics practicals before stepping into the laboratory, to minimise logistical issues. It now offers a fully comprehensive video lesson syllabus, covering all chapters and topics from the Pure Physics syllabus (6091), Express Combined Science Physics syllabus (5076) to Normal (Academic) Combined Science Physics syllabus (5105).Forum
FAQ
Community size
- Tiny: 0 communities (<20 members)
- Small: 0 communities (20-100 members)
- Medium: 0 communities (100-1,000 members)
- Large: 1 communities (1,000-10,000 members)
- Huge: 7 communities (10,000-100,000 members)
- Massive: 3 communities (100,000-1M members)
- Gigantic: 4 communities (1M+ members)
Community features
Community platforms
- Reddit: 3 communities
- Facebook: 2 communities
- LinkedIn: 2 communities
- Discord: 1 communities
- Quora: 1 communities