Any recommended O levels physics books? Do state that if the questions in the books are out of syllabus/outdated or not. Thanks.
Just get and do the ten years series, or do other schools' past year papers. It's more than enough.
Are you looking for Textbooks or Exam papers?
For textbooks, Just use whatever Textbook that your school is using, It should be good enough.
For Exam papers, Best if you can get past year exam papers to practise. The TYS is a good one.