Magnets and Magnetism — Quiz

Question 8 • Physical Science

Which best describes Earth’s magnetic field lines?

Answer

The field lines go out of Earth near the geographic North Pole and enter Earth near the geographic South Pole in an area where the magnetic pole does not align with the geographic pole.

The field lines go out of Earth near the geographic South Pole and enter Earth near the geographic North Pole in an area where the magnetic pole does not align with the geographic pole.

The field lines go out of Earth at the geographic South Pole and enter Earth at the geographic North Pole in the area where the magnetic pole aligns with the geographic pole.

The field lines go out of Earth at the geographic North Pole and enter Earth at the geographic South Pole in the area where the magnetic pole aligns with the geographic pole.

Explanation

Outside a magnet, field lines go from its magnetic north pole toward its magnetic south pole. Earth’s magnetic north pole is near the geographic South Pole, while its magnetic south pole is near the geographic North Pole, so the lines emerge near geographic south and enter near geographic north. The magnetic and geographic poles are close but do not align exactly, as choice B states.

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