Charges
Like charges (+ +, - -) ________
Repel
What charges would appear BEFORE a balloon was rubbed on a boy's head?
none, neutral
electrons move easily through this material
conductors
Current has only one loop flow through
series circuit
interactions of in which there is a force of attraction or repulsion between two unlike poles
magnetism
Unlike charges (- +) _____
Atract
accumulation of excess electric charges on an object
Static electricity
materials in which electrons are not able to move
insulators
Contains two or more branches for current to flow through
Parallel Circuit
Exerts a force on other magnets and objects made of magnetic materials
magnetic field
positively charged particle
The transfer of charges by touching or rubbing objects together.
charging by contact
Net movement of electric charges in a single direction through a wire or conductor
electric current
The more coils that are tightly wrapped around an iron nail will ____________ its magnetic ability
increase
A temporary magnet made by wrapping a wire core carrying a current around an iron core
electromagnet
Negatively charged particle
electron
The shock you sometimes feel when you touch a metal doorknob on a dry day is electric ________.
discharge
Closed path that electric current follows
circuit
A current that flows in only one direction through a wire
DC
Group of atoms with aligned magnetic poles
magnetic domain
Which part of an atom can be transferred
electron
Rearrangement of electrons on a neutral object caused by nearby charged objects
Charging by induction
Tendency of a material to oppose the flow of electrons
Resistance
Small piece of metal that bends when it gets hot, opening the circuit and stopping current flow
Circuit breaker
The more coils that are tightly wrapped around an iron nail will ____________ its magnetic ability
increase