I'm a seasoned Physics teacher in public school with well over a decade of teaching O'Level Physics.

The willingness on the part of the learner is the key point.
Physics is made up of some basic topics spread out into schemes that are taught through well articulated lesson plans.
The lesson plan therefore becomes the major tool for the dissemination of the teaching and learning processes.
However, the lessons are taught with relevance to realities around to fascinate the learner's interest and enhance the learning of the subject.
The contents are made very explicit in order to encourage easy assimilation by the learner.
The use of practical sessions goes a long way in making the learner understand the realty of the principles taught. By so doing a learner verifies the outstanding physics principles and certifies their correctness.
Also various physics (formulae in Physics) learnt are demystified by logical derivations using related equations with clear emphasis.
Definition of concepts in Physics are better illustrated in mathematical forms with equations and derivations thereby making the assimilation of those concepts easier for learners.
Concepts are related in numerous perspectives using their mathematical relationship and interpretations thereby giving the learner faster , easier and broader scope of learning Physics.
Emphasis is placed on logical reasoning from known to unknown thereby creating an entry behavior as previous knowledge for further learning of concepts from known to unknown.
Learners are evaluated at the end of each lesson to assess the level of understanding of the objective of the contents taught in order to ensure effective learning by the learner.
Projects are also given to learner in order to arouse the learner's curiosity and encourage better and faster learning.