Question

a horseshoe magnet is bent so that the north (n) magnetic pole is directly across from the south (s) magnetic pole. which investigation demonstrates a non - contact force? place a nonmetallic object near the horseshoe magnet, and observe that the object does not move. place a metal object on the horseshoe magnet, and observe that the object remains in place when the magnet is picked up. place a metal object near the horseshoe magnet, and observe that the object moves toward the magnet. place a nonmetallic object on the south pole of the horseshoe magnet, and observe that the object does not move to the north pole of the magnet.

Explanation:

A non - contact force is a force that acts on an object without physical contact. A magnet exerts a magnetic force on magnetic materials (like metals) from a distance. When a metal object moves towards a horseshoe magnet without being physically pushed or pulled by direct contact, it shows the presence of a non - contact magnetic force. Nonmetallic objects are not affected by the magnet's magnetic force, and placing an object on the magnet involves contact.

Answer:

Place a metal object near the horseshoe magnet, and observe that the object moves toward the magnet.