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Magnets in Motion. The basics of Magnets and Electricity. What Are Magnets?. Magnets are objects that stick to other objects They contain iron, cobalt, or nickel Iron , cobalt , and nickel are elements that make up the world. How Do Magnets Work?.
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Magnets in Motion The basics of Magnets and Electricity
What Are Magnets? • Magnetsare objects that stick to other objects • They contain iron, cobalt, or nickel • Iron, cobalt, and nickelare elements that make up the world.
How Do Magnets Work? • Magnets match with Earth’s magnetic field. • Earth is a gigantic magnet because it is made mostly of liquid iron
Where are magnets in our lives? • refrigerator magnets • doorbell • can opener • compass • and much more!
Types of Magnets • Natural Magnets • Temporary Magnets • Permanent Magnets
North and South Poles • Every magnet has two poles: a North and a South pole • North Pole = North • South Pole = South
Magnetism • Magnetismis the attraction between opposite poles: North-South • North-North and South-South will repel each other.
What are Magnetic Fields? • A place where magnetic forces can react to one another. It has a size and a direction to show where it is. The closer you get to the pole, the BIGGER the magnetic field will be.
Electricity • Electricity: energy that charges electrons and protons. • Electrons: negative charge • Protons: positive charge • Neutrons: no charge
Static Electricity • Magnetic energy + Electricity • Electric currents also create magnetic fields.
Electromagnetics • Made of an iron core wrapped with a current-carrying wire. • Tighter and closer coils are = stronger the magnet will be.
Circuits • Circuit: the path of an electric current. There are two types: open and closed. • Current: the flow of electricity.
Friction • Friction is created by objects sliding in opposite directions. • You can find friction everywhere!