Electricity charges Flashcards
Do positive charges move
No
What does atomic electric charge diagram show
arrangement of protons and electrons on the top surface of a material. It’ shows all the protons and electrons.
Net charge
The sum of the electrical charges of a material
Excess charge diagrams shows
Just the positive and negative charges that are unpaired
when do you use an Atomic electric charge diagram
Use if you only know the total number of electrons and protons
when an object becomes charged by rubbing where do the electric charges come from
the procces of rubbing leads to a redistribution of charge
a teacher rubs a felt cloth against a glass rod. what will happen after this situation
the two objects will be attracted to each other.becuase one turned postive and the other negative charged . opposites attract
a hand touches a conducting electroscope what happens in terms of charges
the negative charges in the electroscope feel a repulsive force form the negatively charged outside object and an attractive force from the hand. these excess electrons transfer to the hand which acts as a conductive path to the ground.
polarization in conducting materials
electrons are induced into movement across the object from one side of the object to the opposite side
polarization in insulators
atoms merely redistribute themselves
when two insulators of different materials touch and transfer elcectrons between them. results in one becoming positively charged and they other negatively charged
Charging by rubbing
when a charged object touches an initially neutral object which then undergoes polarization. after that, it is exposed to a source that grounds the material. the final product is a charged object with the charge of the object that was brought near to it.
charging by induction
when an uncharged conductor is touched by a negative object and becomes negative itself is an example of?
Charging by touching