Have you ever participated in track and field?
Yes, I have, do you know much about it?
Just that it's a lot of running and solo sports played on a field. What do you know?
Yeah you are mostly correct but it also includes jumping and throwing.
Like pole vaulting?
Yes that will consider as part track and field.  The name is derived from the sport's typical venue: a stadium with an oval running track enclosing a grass field where the throwing and jumping 
I think it's fun to watch during the Olympics.
Interesting fact about Olympics, on-air title of the telecasts, as typically announced at the start of each broadcast and during sponsor billboards is always the official name of the games in question – for example, "The Games of the XXIX Olympiad" for the 2008 Summer Games.