Directions: Select the pair that represents exactly the relation expressed in the given pair.
Gravity : Planet :: Magnetism : ?
Show answer & explanation
Correct answer: B
Explanation
Heat: It has no direct structural connection to magnetism.
Iron: It is a primary ferromagnetic substance, exhibiting and experiencing the properties of magnetism most accurately.
Electrons and Nuclei: These are more closely related to electrical forces at the atomic level.
Just as gravity is directly and primarily associated with planets, magnetism is also practically related to iron.
Therefore, the correct answer is iron.