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Science Probe 9
Chapter 9
16
Science
9th Grade
12/13/2010

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Cards

Term
Grounded (9.3)
Definition
An object is grounded when it is connected to the Earth(ground) by a conductor such as a copper wire.
Term
Electric Force(9.4)
Definition
Also called electrostatic force is a force that exists between static charges
Term
Coulomb's Law(9.4)
Definition

The strength of the electric force increases with increasing electric charges and decreases with increasing distance.

COULOMB:

SI unit for size of electric charge.

Term
Conductor(9.?)
Definition
Allows electrons to move freely between atoms. e.g. copper, aluminum, etc.
Term
Charging by Conduction(9.2)
Definition
When objects touch and an electric charge is transferred from one object to another.
Term
Charging by Friction(9.2)
Definition
When two objects are rubbed together. Friction causes electric charges to be transferred from one object to another.
Term
Insulator(9.3)
Definition
A  material in which electrons are so tightly bound to the atoms making up the material that they are not free to move to a neighbouring atom.
Term
stitic charge
Definition
an electric charge that builds up because of an imbalance between the number of electrons and protons
Term
discharge
Definition
to remove all excess static electric charge so that the object is neutral
Term
electrostatics
Definition
the study of static electric charge
Term
law of Electic Charges
Definition
the law that states that opposite electric charges atteract and like repel
Term
Induced charge separation
Definition
a slight shift in the position of electrons
Term
Charging by induction
Definition
trnansferring an electric charge from one object to another by bringing a charged object close to, without touching another object (no derect contact)
Term
Van De Graaf grenerator
Definition
a type of static electricity generator that separates large amounts of charge
Term
electric force
Definition
the force excerted on an object with an electric charge
Term
coulomb
Definition
a measurment of the quantity of electric charge
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