Magnet Falls Slowly Through Copper Pipe

Magnet falls surprisingly slowly. Ask students to predict what will happen. Drop magnet and same-size metal slug through tube. Key idea: Moving magnetic field induces currents whose magnetic field opposes the motion. Ask: Why does copper slow a magnet without touching it? Safety and cleanup: Teacher handles strong magnets. https://www.google.com/search?q=%22Magnet+Falls+Slowly+Through+Copper+Pipe%22+science+demonstration+experiment