Magnetic Braking Pendulum
Swing damps rapidly near conductor.
Teaching & key ideas
What you do: Swing magnet through metal plate gap vs open air.
What students see: Swing damps rapidly near conductor.
Why it works: Changing magnetic field induces currents that oppose motion.
Question to ask: Where does the motion energy go?
Lesson flow
Predict → demonstrate → observe → briefly explain → ask: Where does the motion energy go?