1
What is the flow of electric charges through a material called?
Electric current
What is the unit of measurement for voltage?
Volts
What is the unit of measurement for electric current?
Amps
What is the unit of measurement for resistance?
Ohms
Lightning is a giant example of electric ____________________.
discharge
Copper and gold are excellent examples of:
Conductors
Plastic, rubber, and glass are all examples of:
Insulators
A material that does not allow electric charges to move through it easily is a(n):
Insulator
A property of matter that can be positive or negative.
Electric Charge
The transfer of electrons through direct contact.
Conduction
Which material allows electric charges to flow through it easily?
Conductor
Which type of current flows in only one direction?
Direct Current
A complete, closed path through which electric charges can flow is a(n):
Electric circuit
In a flashlight, the thin wire that glows to produce light is called the:
filament
The buildup of electric charges on an object is known as:
Static electricity
Which material has no resistance at very low temperatures?
Superconductor
What occurs when there is a sudden loss of static electricity?
Electric Discharge
The three basic parts of an electric circuit are the:
Voltage source, electrical device, conductor
In which type of circuit are there multiple branches for the current to follow?
Parallel
A circuit where the current changes direction repeatedly.
Alternating Current
Which type of material conducts electricity better than an insulator but not as well as a conductor?
Semiconductor
In which type of circuit are all parts connected in a single loop?
Series
What is the liquid or paste inside a battery that conducts electricity?
Electrolyte
What is the term for the opposition to the flow of electric charge?
Resistance
What are the two parts of an electric cell that are usually made of different metals?
Electrodes