The ability of some materials to attract certain metals is called

 Amy wants to construct his own electromagnet. What are the materials he is going to use?

If you will connect the North pole of one magnet to the South pole of another magnet, the two poles will ______.

How are electromagnets different from other magnets?

In an electromagnet, what do you call the region around the wire where the force of magnetism felt?

How can you increase the strength of an electromagnet?

The following tells of the factors affecting the strength of an electromagnet except for one. What is it?

Why was electromagnet called a temporary magnet?

How does electromagnet work for us?