1
Simplest form of electricity
Static
Charge of an electron
Negative
SI unit of resistance
Ohm
Circuit through which current cannot flow
Open Circuit
An automatic switch that opens when the current overloads a circuit
Circuit breaker
The liquids and solutions that contain ions
Electrolytes
Law stating opposite charges attract and like charges repel
Law of electric charges
An electrical device designed to hinder current flow
Resistor
Occurs when current bypasses a load, increasing current through a circuit
Short circuit
Type of circuit that has loads arranged in separate branches so that the current is divided
Parallel circuit
The act of transferring electric charge between two objects through direct contact
Conduction
A simple device that uses the laws of electrostatics to detect small electric charges
Electroscope
Electric current that flows first in one direction and then in another
Alternating
The amount an object hinders the flow of electrons
Resistance
The square root of 121
11
Arrows that indicate how a positive test charge in an electric field would move
The last standing of the seven wonders of the world
Pyramids
Material that allows current to flow without hindrance
Superconductor
Law that relates current, voltage, and resistance
Ohm's Law
The work per unit charge done to move electric charges between differently charged parts of a conductor
Process of diverting unwanted electric charge directly into the earth
Narrow strip of metal housed in a protective case that burns our when current suddenly increases
Fuse
Materials through which electric current does not flow easily
Insulators
Heat caused by electrical friction
Joule heat
Three parts of a circuit
current, conductors, load