A student is investigating magnetic fields. The picture shows what happens when the student drops iron filings on a bar magnet. The student claims that the magnetic fields are not the same across the magnet. Using the picture, what evidence best supports the claim?

Question

A student is investigating magnetic fields. The picture shows what happens when the student drops iron filings on a bar magnet. The student claims that the magnetic fields are not the same across the magnet. Using the picture, what evidence best supports the claim?

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1 point
Captionless Image
The magnetic fields of the magnet are strongest at both poles.
The magnetic fields of the magnet are strongest at the north pole.
The magnetic fields of the magnet are strongest at the south pole.
The magnetic fields of the magnet are strongest at the middle.

Answer 1

The evidence that best supports the student's claim is that the iron filings are clustered more densely around the poles of the magnet. Based on the picture, it can be observed that the magnetic fields of the magnet are strongest at both poles because that is where the iron filings are most concentrated.