Electricity and Magnetism Flashcards
(23 cards)
Voltmeter
a device used to measure voltage
Fuse
Small piece of metal within that melts
Magnetism
A property of some materials that allow them to give off Attractive or Repulsive forces
Magnetic Field
External forces given off by a magnet
Ferromagnet
Objects that if put in a strong enough field will become magnetic
Static Discharge
The buildup of excess electric charge
Electroscope
An instrument used to detect electric charge
Static Discharge
A sudden flow of static electricity between 2 objects
Current
Movement of Electric charge in one direction
Voltage Difference
The “PUSH” that causes something to move
Ohms Law
The current equals the voltage difference
Electric Field
Allows charges to act at a distance
Conductor
Allows electrons to flow easily
Insulator
Blocks flow of electrons
Grounding
Process of removing excess charge
Resistance
Materials that oppose the flow of electrons
Circuit
Closed path in which electrons flow
Ammeter
Measures current in a circuit
Circuit Breaker
Piece of metal that bends when overheated
Magnet
A material that gives off and electric magnetic field
Electromagnetic
Temporary magnet made by placing a piece of iron and coiling wire around it
Electric Motor
Electrical NRG to Mechanical NRG
Generator
Mechanical NRG to Electrical NRG
