Positive and negative charges affect every magnet. Some have different charges that allow for magnets to either attract or not come together. Magnets can be used in industrial settings, as well as to grab smaller objects. There are many experiences that we've all had with magnetism whether we realize it or not.
What experience have you had with magnets in your life?
Throughout my life, I’ve experienced a few instances regarding magnets. The first that comes to mind is magnets on a fridge, and the second is bobby pins with earrings. Growing up, I never thought to myself “fridges, earrings, and bobby pins are all metals and have a magnetic charge that allows other objects to stick to them”. Now, as I’ve learned more science, I recognize that these things and more are connections that we encounter all of the time whether we realize what they are or not.
Additionally, chances are we've all experienced our parents telling us not to put our hotel key next to your phone. This interaction is very strong and very quick, and deactivates the key and your phone. But why? During this week's investigation, we will determine why magnets do what they do.
What ideas do you have about the science of magnets?
I've noticed that everything in the field of science has curious reasons to them. For example, why do opposite charges attract each other? And why do some metals attract metals but others don't? These are just a few ideas that I've had that spike my curiosity and inner scientist.
The experiment:
To test our curiosity with magnets, my group and I put various materials (Lead, Aluminum, Fiberglass, Particle Board, Iron, Cardboard, Copper, Mirror, Glass, Granite, and Foam) in between a strong magnet and a paperclip (tied to a string that is taped to the table), we found that Iron was the only material that broke the magnet field. We also tested whether or not stainless steel would break the field. Because stainless steel is made of different elements, it has less iron in it and therefore doesn't impact the attraction between two magnetic objects.
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