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BJU PhysicalWorld 18 Word Scramble

 
 


 

 
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Question Answer
alternating current (AC)An electric current that regularly changes the direction of its flow.
ArmatureThe rotating electromagnet in an electric motor.
Curie temperatureThe temperature at which a permanent magnet loses its magnetic field.
direct current (DC)An electric current that flows in only one direction.
DomainsMicroscopic regions of materials that may be lined up to produce a magnetic field of force.
electric fieldThe strengths and directions of the electric force at every point around the electrode are collectively called this.
 
ferromagneticStrongly attracted to magnets.
GeneratorsA device that uses magnetic fields to convert mechanical energy into electrical energy.
geographic north polePoint at the “top of the world” where the axis of the Earth spins.
hertz (Hz)The unit of frequency’ one cycle per second.
lines of forcesShow the direction the electrical force will move a positive charge.
magnetic fieldsFields that show the strength and direction of magnetic forces.
paramagneticslightly attracted to magnets.
RelaysA switch used to turn solenoids on or off.
SolenoidsCoiled wires use to form a magnet.
step-down transformerA series of coils that uses induction to produce a lower voltage.
step-up transformerA series of coils that uses induction to produce a higher voltage.
super conducting magnetsA magnet made from special materials and kept at extremely low temperatures.