As someone said, calculations.
Here are some of the ones I have seen come up a lot (I am studying higher this year, and have done most of the past papers since 1990)
do as many past papers as possible!! They have been known to copy and paste some of the older questions into the new past papers
- particle acceleration
- redshift (the one with the wavelengths)
- refraction (easy enough to understand and also is worth like 10 marks sometimes)
- capacitor energy and storage
- memorise band theory for LEDS and Solar Panels
- F = ma
- look at the specification sheet! Anything that says ‘knowledge that’, you should memorise. Then you can say it word for word and do it in the exam
What do you generally struggle with? Calculations? Understanding the concepts? Knowledge and memorisation? - this can help you target your revision
use flashcards for definitions (I recommend anki or Quizlet, anki uses spaced repetition but we dont have much time so I dont think the ones you choose matter too much)
make sure you know all of the use cases for the formulas, you get a mark for just writing them
attempt every questionn(except open ended, leave them until the end), there is no negative marking so you will be grand.
For multiple choice, eliminate the incorrect answers if there’s one you’re unsure about.