Today in class, we learned how to test an electromagnet’s strength. We tested to wrap a quarter, a half, a three quarter, and one whole of the wire around the bolt. People have different opinions. Some people think that the less wire you wrap around the bolt, the stronger it is. Other people think that the more wire you wrap around the bolt, the stronger it is. It turns out that the more wire you wrap around the bolt, the stronger it is.

I wonder how does all of this work? How does the magnet get so powerful? Well, I guess that I have to find that out myself. Electromagnets are temporary, because you can take it apart or the battery had run out, or you disconect the wire. If those stuff happens then it won’t work.

When it was time to clean up, it was very messy. But overall it was very fun.