Question

1. which would likely demagnetize a magnetized iron nail? (1 point)

rubbing it with another magnet
dropping it on a hard surface
exposing it to light
freezing it

Explanation:

• Rubbing with another magnet would likely magnetize it further, not demagnetize.
• Exposing to light has no effect on magnetization.
• Freezing does not disrupt the magnetic domains.
• Dropping on a hard surface can disrupt the magnetic domains (by providing mechanical energy), which is a way to demagnetize.

Answer:

dropping it on a hard surface