Magnetism and Magnetic Fields | Learn about types of magnets and how they work

Magnetism and Magnetic Fields | Learn about types of magnets and how they work with tags magnets and magnetic fields, magnets, magnetic fields, magnetism, what is magnetism, what is a magnet, types of magnets, how do magnets work, what is a magnetic field, does earth have magnetic field, earth's magnetic field, learn bright

Did you know that you probably use magnets every day in one way or another? Magnets are everywhere, in doorbells and computers, in There are three kinds: temporary, permanent, and electromagnets. Temporary magnets become magnetized when a magnetic field is present. But they lose that magnetism once the magnetic field is gone.

Permanent magnets are made from materials that are naturally or chemically magnetized, like iron or nickel. These are the magnets you would use on your fridge. Electromagnets are created by running an current through a coil with a metal core. The energized core creates magnetic field, and when the current turns off, the magnetic field disappears. An MRI machine is a great example of an electromagnet.

The earth itself is a magnet! It has a magnetic field that is generated by the earth's core. This is because of the molten iron and nickel that exists in the earth's outer core. The movement of the metals acts like an electric generator. Cool, huh?

We hope you enjoyed learning about magnetism. If you want to learn even more, head over to our website and download one of our many lesson plans about, full of activities, worksheets, and more!

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What you will learn in Magnetism and Magnetic Fields:

0:00 Introduction

0:14 Magnets, magnetism, and magnetic fields

1:12 Temporary magnets

1:27 Permanent magnets

1:42 Electromagnets

2:29 The earth and its magnetic field

3:21 How the earth's magnetic field protects the planet

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