Ask as many questions as physically possible. Everyone has expertise and you need to absorb it while you can so don't be afraid to ask as many questions as possible.
If you think its too early for an internship its not to early to try. I can't imagine what two summers at Vishay would've done for me.
Don't be afraid of google, you will need to research in order to find answers in the real word so get used to it and have a location to keep all of that information.