Science

Physics

How the universe works, from atoms to galaxies

3 areas 10 topics 20 free resources
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Classical physics

Motion, forces, energy, light and sound

12 resources
Mechanics Forces, motion, energy and fluids 3 resources Electricity & magnetism Charges, fields, circuits and light as a wave 1 resource Heat & thermodynamics Energy, entropy and why things heat up and cool down 3 resources Physics basics A first tour of the big ideas in physics 3 resources Waves, light & sound Optics, acoustics and how waves behave 2 resources

Modern physics

Quantum, relativity and the subatomic

5 resources
Quantum physics The strange rules of the very small 2 resources Relativity Einstein, spacetime and gravity 1 resource Nuclear & particle physics Atoms, nuclei and the fundamental particles 2 resources

Matter & the universe

From materials to the cosmos

3 resources
Space & cosmology Stars, galaxies, black holes and the Big Bang 2 resources Materials & matter Solids, plasmas and the physics of stuff 1 resource

New to Physics?

Great places to start

Q Website Staff pick James Freericks · edX / Georgetown University

Quantum Mechanics for Everyone - Georgetown / edX

Ranked #3 best online course in the world - genuine quantum mechanics with no calculus required. Beginner 10 – 40 hrs Full course Exercises Certificate No prerequisites View A Website Sal Khan · Khan Academy

Astronomy - Khan Academy

The scale of the universe stars galaxies black holes the Big Bang and the fate of the cosmos with built-in practice. Beginner 2 – 10 hrs Video series Exercises No prerequisites View C Website Sal Khan · Khan Academy

Classical Mechanics - Khan Academy

AP Physics 1 covering kinematics forces energy momentum rotation and oscillation with step-by-step practice. Beginner 10 – 40 hrs Video series Exercises No prerequisites View C YouTube Dr. Shini Somara · YouTube / PBS

Crash Course Physics

46 animated episodes covering all of introductory physics from mechanics to quantum basics in 10-minute chunks. Beginner 2 – 10 hrs Video series No prerequisites View

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