Athletics in college?

I was thinking about playing a sport in college, but I wanted to get some information on this first. What are sports like in college and how is it different from high school? How many hours a day and how many days a week do you play in college? Would a sport most likely interfere with studies? Do you have to try out or something or do you just make the team? If you play a sport in college, what's your schedule like? Any comments? thank you!