Light and Matter (created by Benjamin Crowell) is aligned with California state content standards for high school physics (pdf), and is one of 18 texts listed by the California Free Digital Textbook Initiative for use in public high schools. These free physics ebooks cover a wide range of topics including life sciences, non-traditional topics for scientists and engineers, introductory mechanics, conceptual physics and relativity. A long list of learning institutions utilize these ebooks, so rest assured the syllabus is right on the spot and definitely beneficial to those who’re into the world of physics. In addition to the free ebooks, Light and Matter also provides free softwares and courses that go well with the information provided therein. Enjoy the reading materials and have fun!

• Light and Matter – physics for students majoring in the life sciences
• Simple Nature – physics for scientists and engineers, with a nontraditional order of topics
• Mechanics – introductory mechanics for scientists and engineers, with a traditional order of topics
• Conceptual Physics
• Problems in Introductory Physics
• Fundamentals of Calculus
• Relativity for Poets
• Special Relativity
• General Relativity