Welcome to PF!
Sure, we shall share many things on physics here. For guidance, the following are the three main sections in PF. You should explore them well:
1. The main forums, that you see in the first page.
2. Insights Blog, available at the top row (header section). In short, they have been described as a "wonder of the web". It contains articles that help in learning topics to a great extent.
3. The Videos, also available in the header section. The media gallery now has some great videos in almost every aspect in science, and they provide an audio-visual learning experience.
Go through each of these sections, and you shall find a lot of things that you can learn and find interesting.
Enjoy your time here.
With regards,
Wrichik.