Sure bro, for physics first of all you should know that people say physics is low scoring, but i am sure this is not the case. For engineers this is a very good subject because the had nearly 80% of topics in FSC. Yes it may sound shocking but this is true that 80% topics are same, although in FSC they were written in simple terms but still we are familiar with them. Now first of all you should buy FSC books and go through both of them in detail. After that you should consult fundamentals of physics by Halliday, Resinick and study the same topics in detail. Then you should check the past papers and make a list of important topics which repeat in nearly every exam. You would observe that there are very less questions of electronica, thermodynamics, light and fluid dynamics and they tend to repeat. So you should focus on them.