2x interviews; 1x test
Maths based: graphs, binary numbers & geometric sequences; physics: circuits, mechanics
Online website: issac physics
Don't overanalyse afterwards
Remember this advice isn't official. There is no guarantee it will reflect your experience because university applications can change between years. Check the official Cambridge and Oxford websites for more accurate information on this year's application format and the required tests.
Also, someone else's experience may not reflect your own. Most interviews are more like conversations than tests and like, any conversation, they are quite interactive.
2 interviews in the morning, each with two interviewers and an
One maths based: graph sketching, a question about binary numbers, geometric sequences. One physics based: circuit diagrams, fermi estimation, simple mechanics.
Issac physics for physics problems - it's literally designed by the Cambridge physics department so is their style of questions.
You never know how you did in an interview - so don't make false assumptions.