Drop a dry-erase maker cap and the strong magnet in to the vertically held aluminum pipe. Why do the magnet slower the the cap?
Answer :
As the magnet moves down the pipe it creates small electrical currents in walls of the pipe (Eddy currents). These electrical currents repel the magnet and cause it to fall slower.
Drop a dry-erase maker cap and the strong magnet in to the vertically held aluminum pipe....
When a magnet is dropped through the copper pipe, why does it fall slower than the aluminum pellet? Is energy conserved when magnet falls? If not, where does the missing (or gained) energy go (or come from). How would this be different if the pipe was made of PVC?