Magnetism Basics
The term that refers to the properties and interactions of magnets
WHAT IS MAGNETISM?
The results of when two magnetic south poles are brought together
WHAT IS REPULSION?
The interaction between magnets and electric charges is called this
WHAT IS ELECTROMAGNETISM?
This is a device that converts mechanical energy to electrical energy
This is the voltage found in a typical U.S. wall outlet
WHAT IS 120V?
The more powerful ends of a magnet are called this
WHAT ARE MAGNETIC POLES?
The magnetic charge of the Earth’s geographic North Pole
WHAT IS A SOUTH POLE?
This is a wire wrapped in a coil
WHAT IS A SOLENOID?
This is a device that increases voltage for long-distance transport
This is a device that uses an electromagnet to measure electric current, such as in a car’s fuel gauge
When comparing the Earth’s magnetic field to that of a refrigerator magnet, this one is stronger
WHAT IS THE REFRIGERATOR MAGNET?
This is a solenoid wrapped around an iron core with electricity flowing through it
WHAT IS AN ELECTROMAGNET?
Increasing the number of loops or increasing the current in a solenoid does this
WHAT IS INCREASES THE MAGNETIC FIELD STRENGTH?
This is the generation of electric current by the movement of magnetic fields
WHAT IS ELECTROMAGNETIC INDUCTION?
This is electric current that moves in one-direction and is used in battery-powered devices
The region of space around a magnet that exerts force on other magnets and objects
WHAT IS THE MAGNETIC FIELD?
The direction that magnetic fields flow
WHAT IS FROM NORTH TO SOUTH POLES?
This is a device that converts electrical energy to mechanical energy
WHAT IS AN ELECTRIC MOTOR?
This is a wheel that turns when pushed by water, wind, or steam and powers the permanent magnets in a generator
This is electric current that moves in back and forth , is created in generators, and is typically used in U.S. wall outlets
The name given to groups of atoms with aligned magnetic poles
WHAT IS A DOMAIN?
Bringing a non-magnetized magnetic metal close to a magnet results in this happening to the domains
WHAT IS ALIGN THE DOMAINS?
This is the left hand rule for magnetic fields generated through electric current
WHAT IS THE THUMB POINTS TO THE DIRECTION OF THE CURRENT FLOW AND FINGERS WRAP IN THE DIRECTION OF THE MAGNETIC FIELD MOVEMENT?
This is the split ring that changes the direction of the flow of electricity every half turn in an electric motor
WHAT IS A COMMUTATOR?
This is a device that decreases voltage for residential use
WHAT IS A “STEP-DOWN” TRANSFORMER?