Magnetic Braking Pendulum

Swing damps rapidly near conductor. Ask students to predict what will happen. Swing magnet through metal plate gap vs open air. Key idea: Changing magnetic field induces currents that oppose motion. Ask: Where does the motion energy go? Safety and cleanup: Strong magnets teacher-handled. https://www.google.com/search?q=%22Magnetic+Braking+Pendulum%22+science+demonstration+experiment