Electricity Intro
Circuits
Resistance/Misc
Electromotive Force
Batteries
100
What is electricity?
The flow of electrons.
100
What is a circuit?
A path for electric current.
100
MISC- Circuits What is a schematic diagram?
A diagram that uses symbols to show the parts of a circuit.
100
What is electromotive force?
The push that keeps the current (electrons) flowing in an electric circuit.
100
What is a battery?
A source of voltage that changes chemical energy into electrical energy.
200
What is static electricity?
The buildup of electrical charges
200
What is a closed circuit?
A complete, unbroken path for electric current.
200
Misc- Electricity What is the name of a unit that measures how much electric energy is used? (Hint: it is 1,000 watts used in one hour)
Kilowatt-hour
200
What is the metric unit used to measure electromotive force (or the amount of "push")?
Volt
200
What is the energy that a power source gives to electrons in a circuit?
Voltage
300
_________ __________ is the movement of electrons from one place to another.
What is electric current?
300
What is an open circuit?
An incomplete or broken path for electric current.
300
Define conductor AND insulator.
Conductor- material through which electricity passes easily. Insulator- material through which electricity does NOT pass easily.
300
What is direct current?
Current that flows in one direction.
300
What is a dry-cell battery?
Electric power source with a dry or pastelike center.
400
The unit used to describe how much electric current flows through a wire.
What is ampere?
400
What is a series circuit?
A circuit in which all current (electrons) flows through a single path.
400
__________ is the measure of how easily electric current will flow through material.
What is resistance?
400
What is alternating current?
Current that changes direction regularly.
400
What is a wet-cell battery?
Electric power source with a liquid center.
500
What is electric power?
The amount of electrical energy used in a certain amount of time.
500
What is a parallel circuit?
A circuit in which there is more than one path for current.
500
What unit is used to measure resistance?
Ohm
500
What is Ohm's Law?
Current equal voltage divided by resistance (I= V/R)
500
What is a terminal?
The point where electrons leave or enter a battery.
M
e
n
u