College Physics
College Physics meets standard scope and sequence requirements for a two-semester introductory algebra-based physics course. The text is grounded in real-world examples to help students grasp fundamental physics concepts. It requires knowledge of algebra and some trigonometry, but not calculus.
College Physics
A nice free college physics textbook available from Openstax.
Light and Matter
The Light and Matter series of introductory physics textbooks is designed for an algebra-based one-year survey course. The textbooks available for download are Newtonian Physics, Conservation Laws, Vibrations and Waves, Electricity and Magnetism, Optics, and The Modern Revolution in Physics.
Motion Mountain
This free textbook, with little mathematics, explores mechanics, thermodynamics, special and general relativity, electrodynamics, quantum theory and modern attempts at unification.
Simple Nature
Simple Nature which is another calculus-based engineering physics textbook.
Conceptual Physics
A conceptually-based physics textbook by the author of Light and Matter.
A Textbook for High School Students Studying Physics
FHSST (Free High School Science Textbooks) Physics is a free introductory physics textbook. It is a featured book on Wikibooks because it contains substantial content and is well-formatted. You can download a pdf version of the entire textbook.
Free Physics Textbooks
A collection of links to Physics textbooks that are freely available on the internet.
Physics Books
Another nice collection of links to Physics textbooks that are freely available on the internet.
Calculus
This short introductory Calculus text focuses mainly on integration and differentiation of functions of a single variable, although iterated integrals are discussed.