Chapter 8 Review Flashcards
A ________ circuit has only one path for electricity to travel
series
An ___________ circuit is a very small circuit with all the parts built into it
integrated
A ________ circuit has multiple paths for electricity to travel
parallel
A ________ is a continuous unbroken path
circuit
Define magnet
any material that has the ability to attract iron
A ___________ uses a magnet to convert motion into electrical energy
generator
A material through which electricity cannot flow
insulator
a liquid or paste substance that conducts electricity
electrolyte
a material that allows electricity to flow through it easily
conductor
a material that reduces the flow of electricity
resistor
The brain of the computer that tells the other parts of the computer what to do is called the _____ _______ ________.
central processing unit - CPU
Know what makes a good insulator
plastic, wood, and glass
a switch is a conductor that can moved to close or open the _______.
circuit
What is the area of magnetic force around a magnet called?
magnetic field
Integrated circuits signal information by open and closing electrical circuits in __________.
sequence
Static electricity occurs when electrical charges build up on the _________ of one _________.
surface / object
Two objects rubbing together produce ________ electricity.
static
Magnetic force is strongest where?
at the poles
A _______ _______ has only one path, or one circuit, for the electricity to travel.
series circuit
Who discovered that adding a metal core to a coil of wire increased the magnetism?
William Sturgeon
What unit measures how much current flows through a given part of a circuit in one second?
ampere
Who discovered that current traveling through a wire produces a weak magnetic field in the live wire?
Hans Christian Oersted
Which unit measures the amount of electrical push, or force, in a circuit?
volt
Who discovered that moving a magnet around or through a loop of wire produces electricity in the wire? (2 people)
Joseph Henry & Michael Faraday
A coil of wire with a core attached to an electrical source is what?
electromagnet
The filament in a light bulb is an example of what?
resistor
What is one way magnets and static electricity are similar?
Both can attract and repel objects
What is the difference between electrical devices and electronic devices?
Electronic devices can communicate information, but electrical devices cannot.
Describe one way magnetism produces electricity
Moving a magnet around or through a loop of wire produces electricity in the wire. Moving a wire between the north and south poles of two magnets also produces electricity in the wire.
Which unit measures power, or how fast work is done?
watt
