These are the strongest commercially made magnets on the planet and are used for hard drives, motors, and even dentures! Samarium CobaltĪ magnet made from samarium and cobalt is insanely strong. This type of magnet is made from iron, boron, or a rare-element called neodymium. The magnets on your refrigerator would be an example of this type of magnet. CeramicĬeramic magnets aren't particularly strong and usually contain some kind of ceramic material. They're stronger than your typical refrigerator magnet, but still not strong enough to lift a car. In order for a metal object to be considered magnetic, it must have atoms that only have one electron in an orbit.Īn alnico magnet is any magnet that's made from aluminum, nickel, or cobalt. Notice how the electron is on an orbit around the atom. A magnet can be made of any metal or alloy that contains unpaired electrons, which in chemistry, is when an electron occupies an atom orbit on its own and doesn't have another electron alongside it.ĭid you not pay attention in science class? Here's a crash course on how electrons and atoms work! Īn atom, like the one pictured above, is a unit of ordinary matter that is part of basically everything. Magnets are usually made from iron, but that's not always the case. These are naturally created as the result of volcanic activity. Magnets were first discovered in 1845 in the form of magnetite stones. Some magnets have a more powerful magnetic field than others. The closer to the poles, the stronger the pull. Basically, the density of the lines from the north-seeking to the south-seeking poles indicate the power of the field. The measurement of a magnetic field's force is referred to as the Lorentz Force Law. This forcefield is completely naked to the eye, but insanely powerful. What is a Magnetic Field?Ī magnetic field is an area of force that is created by a magnetic object or particle. #Does gold stick to a magnet movieIt's a natural reaction – kind of like the attraction you feel toward certain movie stars. When you think of the word "magnetism," you should also think of the word "attraction." Magnetic objects can't resist the pull of other magnetic objects that contain the opposite pole. These objects can stand on their own, such as refrigerator magnets, or be part of another item, such as the magnets found inside your cell phone. Magnets are objects that produce an invisible moving electric charge known as a magnetic field. You'll find out why they stick, what they're made of, and whether they work in outer space. Stick right here and let's get into all you need to know about magnets. They're all over your refrigerator, but how much do you really know about magnets? Sure, you might have had a science teacher who did an experiment with them in 3rd grade, but you're an adult and it's time for a refresher!
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |