Copper is non magnetic, which means a piece of magnet and a piece of copper, both stationary and close to each other will not attract or repel each other. Extra: copper is a conductor. read more
Copper is non magnetic, which means a piece of magnet and a piece of copper, both stationary and close to each other will not attract or repel each other. Extra: copper is a conductor. When a magnet is moving relative to a piece of copper, Eddy currents and opposing magnetic fields can be set up, which can lead to some pretty cool demonstrations. read more
When a magnet moves near copper (or other metals) it sets up electrical eddy currents. The eddy currents will repel the magnet as it falls down the copper tube. This repulsion pushes against the magnet and slows it down. read more