Question

name:
warm-up
as you watch the video, how an electromagnet works, make note of how electromagnets work and answer the questions below.
simple electromagnet
how are electromagnets similar to other magnets?

how are electromagnets different from other magnets?

Explanation:

For "How are electromagnets similar to other magnets?"

Electromagnets and other magnets (like permanent magnets) both have magnetic poles (north and south), exert magnetic force on magnetic materials (e.g., iron, nickel), and follow the rules of magnetic attraction and repulsion (opposite poles attract, like poles repel).

Electromagnets rely on an electric current (supplied by the battery in the circuit) to generate a magnetic field, so their magnetism can be turned on/off by controlling the current. In contrast, permanent magnets have inherent, constant magnetism. Also, the strength of an electromagnet’s magnetic field can be adjusted by changing the current’s magnitude or the number of wire coils, while a permanent magnet’s strength is fixed (unless physically altered).

Answer:

Electromagnets are similar to other magnets as they have north (N) and south (S) magnetic poles, can attract magnetic materials (e.g., iron), and follow the principle that opposite magnetic poles attract while like poles repel.

For "How are electromagnets different from other magnets?"