Vocabulary
Property of matter that causes electrical phenomena
Electric charge
What are the two kinds of electric charge?
positive and negative
What are the two things that effect the strength of an electric force?
strength of charge and distance
a charged object always creates an
electric field
An object that has a high resistance to electric current is called an
insulator
The opposition to the flow of an electric charge
Resistance
A neutral object is an object that has
an equal number of positively and negatively charged particles.
What will be the strength of an electric force if the electric charge is strong?
strong
How is an electric field represented in a field diagram?
arrows
An object that electric currents can travel through easily is called a
conductor
A force field surrounding an electrically charged object
Electric Field
In terms of electric charge, what has to happen for 2 objects to be attracted to once another?
One must have a positive charge and the other must be negative
What will be the strength of an electric force if the distance between the two objects is long?
weak
electric fields predict
which way electric forces will pull or push an object
In a circuit involving a battery and lightbulb, this is needed to open and close the circuit
switch
Attractive or repulsive noncontact forces between charged particles
Electric forces
When are electric forces repulsive?
when they have the same kind of charge
What will be the strength of an electric force if the electric charge is weak and the distance between the two objects is long?
weak
What direction do negatively charged objects move in an electric field?
opposite
In class we compared a series circuit to a __ circuit
parallel
A flow of particles with electric charge
Electric Current
When 2 objects are rubbed together, which type of charge moves from one source to the other?
negative charge
What will be the strength of an electric force if the distance between the two objects is short and the electric charge is strong?
strong
The electric force of an object decreases with
distance
materials that act as a conductor under certain circumstances, and as an insulator under other circumstances are called
semiconductors