To impress the committee, it's important to demonstrate your familiarity with the company and the position. Brainstorm questions directly related to the position, using your insider knowledge of the industry. For example, a Food & Beverage management internship candidate might ask about cost to sales ratios.
If you know the name of your interviewer, look him/her up online. LinkedIn makes it easy to do this. (Just don't connect with the interviewer!) Think of questions to ask your interviewer about his or her career path. This shows you take interest in others, and sets you apart from other candidates who are only there to talk about the position.
When you are armed with several thoughtful in-depth questions that demonstrate your knowledge of the position and go past information easily found online, you will impress - and be much more likely to land the position.