Form 5 P2 Checklist:
Chpt 1 :
Undrstanding wave graph,( frequency,period,wavelength), resonance
Wave refraction ( for water,sound & light)
Wave interference ( for water,sound & light)
Chpt 2:
Electric field,Ohms Law, Emf & Internal resistance, Power efficiency & Transmission line
Chpt 3:
Electromagnet & Application(motor etc), Electromagnet Strenght Factors
Induction & Application, (Lenz +Faradayslaw, generator & etc)
Chapt 4:
CRO, Transistor circuit(amplifier+switch), Logic GATES Application
Chapt 5:
Radioisotope application, Half Life, Nuclear Fusion+Nuclear reactor
U are welcome to discuss other tips u've receicved in the comment section. However any topic can be asked in paper 1 & 3. In other words u need to study almost all subtopics in order to get an A (;
..so all the best & Good luck!