The Moon Has a Diameter That Is Approximately One-Fourth That

question 25

Multiple Choice

The Moon has a diameter that is approximately one-fourth that of Earth. If these objects' interiors are heated by radioactive decays, and the total amount of energy in decays is proportional to the object's volume, then how does the amount of heat the Moon has compare to that of Earth?

• A) The Moon has 0.016 times that of Earth's.
• B) The Moon's heating rate is 8 times that of the Earth's.
• C) The Moon's heating rate is 0.5 times that of Earth's.
• D) The Moon's heating rate is 4 times that of the Earth's.
• E) The heating rates are about the same.

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