Based on the trends you observed in the laboratory exercise, which objects would you expect to be attracted to a bar magnet? Check all that apply.a metal hammera wooden rulera plastic carthe metal frame of your chairthe paper in your notebookthe screws and nails that hold your desk together

A bar magnet attracts ferromagnetic materials such as iron and steel. The metal hammer, metal chair frame, and desk screws and nails are expected to contain these materials, so they would be attracted. Wood, plastic, and paper are not attracted to a bar magnet in this ordinary classroom test.

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