Sandbox Physics · Textbook
Interactive Physics Textbook
A connected physics course in seven volumes. Each chapter builds a model, works the examples and tests the prediction in a Lab.
Each chapter starts from one question. It builds a model you can test, works the derivation and examples in full, and ends with exercises, explained answers and a Lab task. Prerequisites are listed at the top of every chapter, and new mathematics is explained where it is first used.
Start with Volume 1, Chapter 1 →The seven volumes
Volume 1
Motion, Force and Energy
How do we describe and measure motion, predict it from forces, and solve it with energy and momentum?
Volume 2
Oscillations and Waves
How does a disturbance oscillate, travel and add up, and which frequencies are amplified?
Volume 3
Electricity, Magnetism and Circuits
How do charges interact, how do fields store energy, and how do changing fields link together?
Volume 4
Light, Imaging and Measurement
How does light travel, form images and interfere, and why can an instrument not resolve smaller detail?
Volume 5
Heat, Probability and Matter
How does the motion of many particles produce temperature, pressure and heat?
Volume 6
Quantum Physics
Which observations need a quantum description, and how does a state connect to measured results?
Volume 7
Learning the Microscopic World from Experiments
What does an instrument actually record, and how do data show structure, states and interactions?
Other courses
Quantum field theory, coarse-graining and critical phenomena
An eight-chapter course for readers who already know quantum mechanics, from coupled oscillators to critical scaling.