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Stack #400949
chapter 18 vocab
Question | Answer |
---|---|
magnet | any material that attracts iron or materials containing iron |
magnetic pole | two points, such as the ends of a magnet, that have opposing magnetic qualities |
magnetic force | the force of attraction or repulsion generated bt moving or spinning electric charges |
electromagnetism | the interaction between alectricity and magnetism |
solenoid | a coil of wire with an electric current in it |
electromagnet | a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil |
electric motor | a device that converts electrical energy into mechanical energy |
electromagnetic induction | the process of creating a current in a circuit by changing a magnetic field |
electric generator | a device that converts mechanical energy into electrical energy |
transformer | a device that increases or decreases the voltage of alternating current |