As a physics teacher, physics is easy if you remember the units. At least, the equations are. Everything in (high school and mostly college+) physics is intuitively relative to units. Remember that force is in N which are kgm/s^2? Boom, you know that it's mass times acceleration (kg times m/s/s). The tricky part is remembering the theory, but that's simply logic. Acceleration: it's how fast something changes how fast it's going, right? So....v=at. Velocity is acceleration times the time you're accelerating over. You can do this with pretty much any physics theory. Some of the high level (re: modern, so 1800's+) theories are like this, but only if you know how to think about them differently (like quantum physics and relativity).