##### Nature of Electricity
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#### Complete list of Terms and Definitions for Nature of Electricity

Terms Definitions
A(n) __ measures electrical current. amp
Fixed resistors have relatively ___ resistance levels like _____. high; hundreds, thousands, millions of ohms
A __ is a device, such as a light or an appliance, that we want to run with electricy. load
See k or kilo- and think: thousand
Electromotive force is ___ a force that tends to move electricity.
What is nichrome? a wire that is a poor conductor, used in wirewound resistors.
Another way of describing electromotive force is the term ____. potential.
The magnitude of electrical resistance in a circuit is measured in ___. ohms
Using the electric series, the materials listed on the positive end of the series will receive a __ charge when rubbed with a material further toward the negative end of the series. positive
See m or milli- and think: thousandth (move decimal to the right)
A __ is the device used to turn the electricity flow on and off. switch
One watt is ___________. the power exerted in a circuit with an EMF of 1 volt and a current of 1 amp.
See ยต or micro- and think: millionth (move decimal to the right)
Abbreviations for voltage are V and __. E (for EMF)
In a(n) _____ circuit, the circuit is complete. The power flows through the entire circuit path. closed
See n or nano- and think: billionth (move decimal to the right 9)
A ___ measures potential. volt
What is the mathematical representation of Ohm's Law? E=I x R
The amount of electric current flowing through a circuit is called __. amperage.
An example of a resistor material is: carbon
Four components of a circuit are: power source, conductors, a load, and a switch
Amps can be abbreviated with the letters A and __. I (for Intensity)
See G or giga- and think: billion
A complete electrical path is a ___ circuit
Resistors are commonly used to ______________. protect curcuits and control the flow of electricty through them
The opposition that a circuit or substance creates against the flow of electrical current is ___. resistance
A __ measures the quantity of charge equal to 6.24 x 10^18 electrons. Coulomb
Examples of ___ are glass, mica, porcelain, paper, plastic, and rubber. insulators
The strength of electrical potential (or EMF) is measured in units called __. volts.
What is a Coulomb? One coulomb is the quantity of charge equal to 6.24 x 10^18 electrons.
The material between one charged body and another is called the ___ dielectric.
What kind of resistors are used in high power circuits like in heaters? Wirewound resistors
Carbon resistor is also called a fixed resistor.
In a(n) _____ circuit, the circuit is broken. The power cannot flow through to the load. open
Static charges can be eliminated by either __ or __. bonding, grounding.
Wirewound resistors have resistance values of ____ ohms. tens, hundreds or thousands
See M or mega- and think: million
Two of the best-known conductors of electricity are silver and copper
What is 5,500,000 in scientific notation? 5.5 x 10^6
Process by wich an object receaives a static charge by being placed near another charged object (without touching). Induction.
See p or pico and think: move decimal to the right 12 (trillionth)
What is an Ohm? One ohm is the resistance which allows a current of one ampere when an electromotive force of one volt is applied to a conductor.