In my day equivalent subjects required at high school were chenistry, biology and physics. I hated physics, but knuckled down and finally grew to quite like it. Big problem for me was optics. In exam had compulsory question to derive focal length of lens using planometer. Boy did I struggle, in the end, was a practical, I derived the focal length by another method and put the figures in and hoped for the best, I passed.
johnep34