A cereal some water and a magnet!
Classical Mechanics
Level
3
Try this: put some cereal in a bowl full of water, bring a very strong magnet near the surface (but do not touch it), and slowly move the magnet away from it.
Why do you see the cereal attracted towards the magnet?
Cereal contains iron in it
It is because of the gravitational force applied by magnet on the cereal
It happens because water acts like a magnet
It is because of the earth's magnetic field
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1 solution
This happens because water is diamagnetic in nature. When a magnet is brought near it the water molecules near it which are slightly negatively charged gets repelled. This creates a depression on the surface of water and it moves with the movement of magnet. The cereal slips in that depression and moves with the magnet. This creates the impression that the cereal is attracted by magnet