The Laws of Physics

Introduction to Motion

The many kinds of force that keep things moving.

Light and Optics

Keeping things light.

Nuclear Physics

The physics governing activity within atomic nuclei.

Newton’s Laws of Motion

Newton's system for describing all kinds of motion.

Quantum Mechanics

Where Newtonian physics stops working.

Relativity and space-time

How relativity starts to unravel Newtonian mechanics.

Electricity and Magnetism

The interrelated forces that govern electronics and magnetics.


The study of the relationship between heat and other forms of energy.

Waves and Sound

How waves transmit energy across space.

Electromagnetic Waves

The waves that power the electromagnetic spectrum.

Work and Energy

How work works.


The physics of the stars.