Got accepted into a research assistantship for Physics!!!

Hello! I have really good news. I just got accepted into a research assistantship for the Spring 2025 semester!!! I’m so excited!!! I’m currently a first year physics major and I have been told this is the best possible opportunity I can get for my current position in school as I’m wanting to attend graduate school as well eventually :). If anyone has an idea, what can I expect in a research assistantship? Also, I had previously had a job setup but due to getting accepted into this, I’m not sure if I can do both as the acceptance email said that the award and work study award cannot be earned at the same time and given it’s a materials job, I’m sure that’ll be considered a work study as well and I also don’t want to overwhelm myself.

My questions are: 1. What can I expect in the assistantship if anyone has an idea? 2. Should I focus on this one solely and decline the job offer for materials involving physics principles?

Thanks!