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sciencech7voc

QuestionAnswer
Magnetism the properties and interactions of magnets
Magnetic field a region of space that surrounds a magnet and exerts a force on other magnets and objects made of magnetic materials
Magnetic pole the regions of a magnet that exert the strongest force
Magnetic domain groups of atoms with aligned magnetic poles
Electromagnetic force the attractive or repulsive force between electric charges and magnets
Electromagnetism the interaction between electric charges and magnets
Solenoid a single wire wrapped into a cylindrical wire coil
Electromagnet is a temporary magnet created when there is a current in a wire coil
Galvanometer is a device that uses an electromagnet to measure electric current
Electric motor is a device that changes electrical energy into mechanical energy
Electromagnetic induction the generation of an electric current by a changing magnetic field
Generator uses electromagnetic induction to transform mechanical energy into electrical energy
Turbine a large wheel that rotates when pushed by water,wind, or steam
Direct current is electric current that is always in one direction through a wire
Alternating current is electric current that reverses the direction in a regular pattern
Transformer is a device that increases or decreases the voltage of an alternating current
Created by: amgrace
 

 



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