About creating a website

Hello,
I want to ask, is it possible to make website with WordPress using plugins.
Requirements:
* Articles with categories and subcategories.
* Video gallery with categories.(other people could add videos)
* Photo gallery with categories.(other people could add photos)
* Ads with categories and subcategories. (other people could add Ads)

And if you know could you tell me witch plugins do need to use for this?

Thanks.