A. Compasses typically use a permanent magnet.

No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.

Yes, it is a permanent magnet.

No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.

Permanent magnets do not lose their magnetic ability. Temporary magnets, however, gain magnetic properties when they are touched or moved by a permanent magnet. The properties of a temporary magnet dissipates over time after the permanent magnet is removed.