A great resource with YouTube playlists covering Classical Mechanics, Thermodynamics, Electricity & Magnetism, Relativity, Particle, Atomic, Quantum, and Nuclear Physics (& more).
Site description:
“The YouTube channel contains a series of Physics videos which are intended to give a basic introduction to the subjects covered. They explain the essence of the subject in as simple as way as possible. They assume basic knowledge of algebra and calculus and some general physics.
Dr PhysicsA has a BSc (physics) and PhD (nuclear physics) from King’s College, London.”