Goodluck to your brother,is he studying on his own or is he studying in school/Academy/tuiton as well ? For MCQ,I would suggest to read VERY carefully and be very clear about everything.Any doubts,he should youtube it or ask here because MCQ is more about IQ,not just like you know v=u+at that you can put in the values and you get your answer . in MCQ it's tricky,I wouldn't call it difficult,buut if you know your way around the concepts then inshAllah u will get an A and usually people get A in MCQ because the threshold is considerably low . For theory,he should read properly about Percentage uncertainty ,Electricity,Charge,Forces,Speed,Waves and Nuclear physics . Besides this topics where questions are bound to come ,your brother should not ignore topics like young modulas,pressure and density .I would tell your brother to study hard for waves and electricity specifically because questions for these are abit tricky . Otherwise tbh As Physics is not that difficult . As for the practicals,IDK that one because I fucked it over. In As physics I got AAC . No doubt that he needs to practice and yes like always,no bias checking . And tell him to not look at grade threshold and make 80% his target . Because if he actually tries to achieve 80% in each paper ,without biasness,I'm confirming you that he will get an A .