A Metal Rod Is Falling Toward the Surface of the Earth

question 48

Multiple Choice

A metal rod is falling toward the surface of the Earth near the equator.As it falls,one end of the rod becomes positively charged due to the motional emf of the rod through the Earth's magnetic field.The rod is oriented so that

• A)the rod is vertical with the positive end higher.
• B)the rod is horizontal with the positive end toward the north.
• C)the rod is horizontal with the positive end toward the east.
• D)the rod is horizontal with the positive end toward the west.

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Definitions:

Aluminum Foil

A thin sheet of aluminum metal that is used for cooking, packaging, insulating, and other applications due to its lightweight and non-corrosive properties.

Element

A substance that cannot be broken down into simpler substances by chemical means, consisting of atoms with the same number of protons.

Chemically Bonded

The state of being joined or connected through chemical bonds, which involve the sharing or exchange of electrons between atoms.

Homogeneous

A descriptor for a mixture or substance that has the same uniform appearance and composition throughout.