Take a look at an organized physics course. The 34-section electronic textbook covers material in AP® Physics 1 and 2. Teachers use the text to supplement lectures and have the class work through the labs. Each section contains...

In this series of interactive physics tutorials, students will focus on the wavelike nature of light.

In this interactive physics tutorial about refraction, students investigate the topic of the direction of bending of a light wave.

This illustrated physics tutorial explains the electromagnetic and visible spectra of light using illustrated examples and interactive practice problems.

Students will focus on the interaction of sunlight with atmospheric particles to produce blue skies and red sunsets.

This digital textbook covers core physical science concepts and includes interactive features, real world examples, and videos.