What does F2 mean?

Answer 1

F2 can been a number of different things.

In meteorology, F2 is a level on the Fujita scale of tornado intensity, indicating a relatively strong tornado.

In chemistry, F2 is the chemical formula for fluorine gas, a toxic and highly reactive element.

In genetics, F2 refers to the third generation of organisms in a study, with the first two being the P and F1 genrations.

In racing, F2 is short for Formula Two, a variety of car racing similar to Formula One.