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Chapter 7 Cards

Flash cards of important vocab inside of Chapter 7

QuestionAnswer
What is "Magnetism?" The properties and interactions of magnets.
What is a "Magnetic Field?" A magnetic field is a region of space that surrounds a magnet and exerts a force on other magnets and objects made of magnetic materials.
What is "Magnetic Poles?" Regions of a magnet that exert the strongest force.
What is "Magnetic Domains?" Magnetic domains are a group of atoms with aligned magnetic poles.
What is a "Electromagnetic Force?" An electromagnetic force is the attractive or repulsive force between electric charges and magnets.
What is "Electromagnetism?" Electromagnetism is the interaction between electric charges and a magnet.
What is "Solenoid?" A solenoid is a single wire wrapped into a cylindrical wire coil.
What is a "Electromagnet?" An Electromagnet is a temporary magnet created when there is a current in a wire coil.
What is a "Galvanometer?" A galvanometer is a device that uses an electromagnet to measure electric current.
What is a "Electric Motor?" An electric motor is a device that changes electrical energy into mechanical energy.
What is "Electromagnetic Induction?" A electromagnetic induction is the generation of an electric current by a changing magnetic field.
What is a "Generator?" A generator uses electromagnetic induction that transforms mechanical energy into electrical energy.
What is a "Direct Current?" A direct current, otherwise known as DC, is electric current that is always one direction through a wire
What is a "Alternating Current?" A alternating current, otherwise known as AC, is an electric current that reverses the direction in a regular pattern.
What is a "Transformer?" A transformer is a device that increases or decreases the voltage of a alternating current.
Created by: Toaderoo
 

 



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