Magnetic Forces

Science — First Preparatory

Applications and examples from life

Comparison aspect	Main idea	Keywords
The iron filings experiment	we place a magnet under a sheet of paper and sprinkle iron filings on the paper. The filings arrange themselves along the field lines and they are most dense near the poles	placemagnetundersheet
Cutting a magnet	if a bar magnet is cut into small pieces each piece still has two poles. This shows that a magnet cannot lose a single pole by cutting	smallpiecespiecestill
Refrigerator doors	the door has a magnetic strip that pulls the door towards the iron body of the refrigerator so the door closes tightly	magneticstrippullstowards

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