# Shared Flashcard Set

## Details

Electric Forces and Fields
Holt Physics Ch. 17
27
Physics
12/13/2011

Term
 Like Charges do what?
Definition
 Repel
Term
 Unlike Charges do what?
Definition
 Attract
Term
 Positively charged particles are called?
Definition
 Protons
Term
 Neutral particles are called?
Definition
 Neutrons
Term
 Negatively charged particles are called?
Definition
 Electrons
Term
 What are ions?
Definition
 Atoms that are positively or negatively charged.
Term
 What is the charge of a electron?
Definition
 -1.60 x 10^-19
Term
 What is the charge of a proton?
Definition
 +1.60 x 10^-19
Term
 What is a conductor?
Definition
 Material that transfers charge easily such as metals.
Term
 What is a insulator?
Definition
 Material that does not transfer charge easily such as glass, rubber, silk, and plastic.
Term
 What is it called when two objects become charged from rubbing together?
Definition
 Charging by contact
Term
 The process of charging a conductor by bringing it near another charged object and grounding the conductor is called?
Definition
 Induction
Term
 What is polarization?
Definition
 When an object that has either positive or negative charge that is brought to a neutral charged object, the objects are attracted because the neutral charge can turn into any.
Term
 What is the equation to Coulomb's law?
Definition
 F = k q1q2/r^2
Term
 Gravitational force is always have a positive?
Definition
 mass
Term
 Electric forces can be both?
Definition
 Attractive or repulsive
Term
 Define electric field
Definition
 a region in space around a charged object in which a station ary charged object experiences an electric force because of its charge.
Term
 What is the equation for measuring electric field intensity or strength?
Definition
 E = F/q in N/C
Term
 k = what?
Definition
 9 x 10^9 Nm^2/C^2
Term
 1 Coulomb = to what?
Definition
 6.25 x 10^15
Term
 when the answer is +, the forces are?
Definition
 Repelling against each other.
Term
 When the answer is -, the forces are?
Definition
 Attracting each other.
Term
 "u" is = to?
Definition
 x 10^-6
Term
 Define electric field lines.
Definition
 Lines that represent both the magnitude and the direction of the electric field.
Term
 When electric field lines for two point charges of equal magnitude but opposite signs it is called?
Definition
 Electric dipole
Term
 When no net motion of charge is occurring within a conductor, it is called?
Definition
 Electrostatic equilibrium
Term
 Electric potential difference and electromotive force, EMF.
Definition
 V = w/q ; mg = Eq ; V = Ed
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