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AssignmentMultiple Select

Magnets and Magnetism

Question 1 • Crowley Credit Recovery Physics B

Which statements accurately describe Earth’s magnetic field? Check all that apply.The magnetic field lines flow from Earth’s geographic South Pole to Earth’s geographic North Pole.The magnetic field is created by magnetic rocks on the surface.The magnetic poles line up exactly with Earth’s geographic poles. The magnetic field is generated in Earth’s core.The magnetic field is similar to the magnetic field of a bar magnet.

Answer
A
The magnetic field lines flow from Earth’s geographic South Pole to Earth’s geographic North Pole.
B
The magnetic field is created by magnetic rocks on the surface.
C
The magnetic poles line up exactly with Earth’s geographic poles.
D
The magnetic field is generated in Earth’s core.
E
The magnetic field is similar to the magnetic field of a bar magnet.

Explanation

Earth’s magnetic field lines outside the planet run from near the geographic South Pole toward the geographic North Pole, so A is correct. The field is generated by processes in Earth’s core, not by magnetic rocks on the surface, and its overall pattern resembles that of a bar magnet. The magnetic poles do not line up exactly with the geographic poles, so C is not correct.

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