*Below are lecture notes from the freshman physics courses I taught at Caltech (2014-2019). I hope these notes illustrate that physics is not about applying the right equation or following some recipe, but rather about building intuition - checking limiting cases, using symmetry, solving problems in multiple ways - so that you do not simply end up with an answer, but rather end up with the confidence to know that your answer is correct.*

## Classical Mechanics

## Electricity and Magnetism