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Electric Charges and Forces

Teacher: Hessling
Across
Like charges --- each other
Unlike charges ---each other
For an ------the number of electrons does NOT equal number of protons
A material that does not allow electrons to move freely
A material with a FEW free electrons to move. Does not contain as many as a conductor
----- are exchanged, protons STAY PUT!
Protons and --- contribute to the mass of the atom
A neutral nitrogen atom has an---- number of Protons and electrons
An object with equal number of positive and negative charges.
Down
Most of the atom is empty ----.
An atom that loses electrons has a --- charge
When two objects are rubbed together and a charge is transferred. This is charging by -----.
A device used to observe forces between 2 kinds of charge.
An atom that gains an electron has a ---- charge.
A material which has free electrons that move to create electrical current
All matter is made up of tiny particles called---
The center of the atom is called the ---.
The unit for electrical charge