Using your image of the voltage in the loop draw a clear and consistent vector diagram that shows, why the voltage measured, is positive or negative. Note that you should have 8 diagrams

\fMotion . Start high above iOLab . Move magnet rapidly downward Motion B-field up . Start next to iOLab device . Move magnet rapidly upward B-field up Effect Effect . Add field lines in the -Z direction Remove field lines in the -Z direction