Vocabulary
Conductors and Insulators
Charge Polarization
Conservation of Charge
Charging by Induction
100
The fundamental electrical property to which the mutual attractions or repulsions between electrons or protons is attributed
What is charge?
100
Insulators are poor conductors of electricity.
What are insulators?
100
can occur in insulators that are near a charged object
What is charge polarization?
100
Have electric charge
What is electrons and protons?
100
If a charged object is brought ___ a conducting surface, electrons will move in the conducting surface.
What is near
200
The principal that electrons are neither created nor destroyed, but are simply transferred from one material to another
What is conservation of charge?
200
Materials that can be made to behave sometimes as insulators and sometimes as conductors.
What are semi-conductors?
200
All _______ near the surface of the insulator become electrically polarized.
What are atoms or molecules?
200
In a ___, there are as many electrons as protons, so there is no net charge.
What is neutral atom?
200
When we allow charges to move off or onto a conductor by touching it, it is common to say that we are ____ it.
What is grounding
300
States that charged particles that are small compared with the distance between them, the force between the charges varies directly as the product of the charges and inversely as the square of the distance between them
What is Coulomb's Law?
300
Atoms in a semi-conductor hold their electrons until given small
What are energy boosts?
300
When there is more negative charge on one side than the other, molecules are ___.
What are electric dipoles?
300
A charged atom is called an ____?
What is ion
300
Charging by ____ occurs during thunderstorms.
What is induction
400
Materials through which electric charge can flow
What is conductors?
400
thin layers of semi-conductive materials sandwiched together
What are transitters?
400
Objects are electrically charged in three ways:
What is friction, contact, and induction.
400
An ____ comes about by adding or removing electrons.
What is imbalance
400
Two ways electric charge can be transferred are ___ and ____.
What is friction and contact
500
One side of the atom or molecule is induced to be slightly more positive or negative than the opposite side, and the atom or molecule is said to be..
What is electrically polarized?
500
good conductors for the motion of electric charges
What are metals?
500
Example of electric dipole
What is H2O molecule?
500
An object that has unequal numbers of electrons and protons is?
What is electrically charged
500
When a charged rod is placed in contact with a neutral object, some charge will transfer to the neutral object. This method of charging is called ____.
What is charging by contact
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