Arduino for Physics

Hi everyone,
I am an high school student and I am looking for a project about the electromagnetic induction for my final exam.
Do you have any suggestions for me?

Thanks

Wind one, make some measurements of magnetic pull strength vs current, frequency, etc.
Museum of Science here in Boston has a neat experiment where current is induced in non-ferrous metal, the induced current create a magnetic charge, repelling the non-ferrous metal when one would normally think magnetism would not exist. Its a neat demo. I don't know how much current is actually needed for that.