What is Magnetism?
Magnets
Electricity / Magnetism
Electric Magnet
100
_______ acted like magnetite when rubbed with it
IRON
100
the magnetic field is strongest ___________
CLOSE TO THE POLES
100
Doorbells & High speed trains use __________________ to operate
ELECTROMAGNETS
100
a ___________ uses a magnetic field to turn motion into electricity
GENERATOR
200
the area around a magnet through which the magnetic force is exerted
MAGNETIC FIELD
200
Magnetic field is weakest _______________
FURTHER AWAY FROM THE POLES
200
a current carrying wire wrapped around an iron core
ELECTROMAGNET
200
______________ changes from positive to negative due to a looped wire changing direction of motion.
ALTERNATING CURRENT
300
a magnetic needle free to turn
COMPASS
300
a group of atoms with their fields pointing in the same direction
MAGNETIC DOMAIN
300
True or False ; two current carrying wires can attract or repel each other
TRUE
300
a generator producees a _________________ which flows in one direction
DIRECT CURRENT
400
__________________ produce a magnetic field
MOVING ELECTRIC CHARGES
400
______________ contains a large number of magnetic domains
A MAGNET
400
current carrying wires produce a _____________ that acts teh same as a magnet's magnetic field.
MAGNETIC FIELD
400
changes the voltage of an alternating current
TRANSFORMER
500
Earth's magnetic field
MAGNETOSPHERE
500
magnetic field lines begin at the ______________ and end at the ________________
NORTH POLE ; SOUTH POLE
500
charged particles from the sun follow earth's magnetic field to the poles where they create _______________
AURORA
500
the measure of how much energy electric charges in a current are carrying
VOLTAGE
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