Photo credit: Khan Academy
Khan Academy offers great courses in Math, Science, Engineering, Arts, Humanities, Computing, Economics, Finance, and test preparation. This link will take you to the lessons for Physics, which includes: an Introduction to Physics, one & two-dimensional motion, forces, Newton’s Laws of Motion, Centripetal Force & Gravitation, Work & Energy, Impacts & Linear Momentum, Torque & Angular Momentum, Oscillations & Mechanical Waves, Fluids, Thermodynamics, Electric Charge/Field/Potential, Circuits, Magnetic Forces, and many, many more.