Experiment 5 (Permanent Magnet Levitation. Demonstrates: Magnetic Forces). You can build a simple levitation
system using permanent magnets. On a square piece of thin plywood, glue four magnets. Ring magnets such as those used to
hold down notes on magnetic boards are suitable. Make sure all four magnets are glued such that identical poles point in the
same direction by testing with a fifth magnet. If all four attract or all four repel the fifth magnet, they are properly aligned. On
a second, identical piece of wood, glue four additional magnets in exactly the same fashion, with the same polarity facing
away from the wood plate. Now, drill two holes through both plates and pass wooden pegs through them. These pegs will
prevent the plates from rotating. Place one plate on a table and slide the second over the pegs so that the four magnets of one
plate face the four magnets of the other plate. The upper plate will be suspended above the lower at some distance depending
on the strength and weight of the magnets and the weight of the plate.