Category 1
All electrical appliances must have ___ electrical connections.
at least 2
The volt is the unit that measures electrical pressure, which pushes the flow of ____ forward through a conductor.
electrons
An example of an insulator is ______.
rubber
The function of a ____ is to automatically interrupt or shut off an electric circuit at the first indication of an overload.
circuit breaker
A ____ is an adjustable resistor that is used for controlling the current in a circuit.
rheostat
An electric _____ is composed of a conductor and an insulator.
wire
A _____ is a safety device that prevents the overheating of electrical wires by preventing excessive current from passing through a circuit.
fuse
A _____ is an apparatus found within a power supply or adapter that converts alternating current to direct current.
rectifier
An example of a conductor is _____.
the human body
The amount of electric energy being used in one ____ is measured in watts.
second
Alternating current is a rapid and interrupted current that produces a ____ action.
mechanical
What is the flow of electricity along a conductor called?
Electric current
The electrical ____ in an electrical current is measured in ohms.
resistance
____ current is a constant, even-flowing current that travels in one direction only.
Direct
_____ is a form of energy that produces physical, magnetic, chemical, or thermal effects when in motion.
Electricity