Learn AP Physics

AP Physics 1 & 2 - Modern Physics

The topics covered in "modern physics" include the photoelectric effect and relativity, and may require some adjustments to your Newtonian thinking!

Modern Physics Video Lessons


The Michelson-Morley Experiment (Mechanical Universe, Episode 41)
The Lorentz Transformation (Mechanical Universe, Episode 42)
Velocity and Time (Mechanical Universe, Episode 43)
Energy, Momentum, and Mass (Mechanical Universe, Episode 44)

Quantum Mechanics

Particles and Waves (Mechanical Universe, Episode 50)
Atoms to Quarks (Mechanical Universe, Episode 51)
The Quantum Mechanical Universe (Mechanical Universe, Episode 52)

Photoelectric Effect

None currently available

Multiple-Choice Practice Problems

Scroll down to see multiple choice practice problems in modern physics, radioactivity, and quantum theory.