Question

which object will have the greater density: a pure iron anchor or a pure iron magnet?

Explanation:

Density is a property of a substance, not of the object's shape or use. Both the anchor and the magnet are made of pure iron. Since they are the same substance, their densities are equal.

Answer:

Neither. They have the same density because density is a characteristic property of a pure substance (in this case, iron) and does not depend on the object's form (anchor vs. magnet).