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Take out Reference Table, Note packet, Blank Sheet of Paper Review Take out Reference Table, Note packet, Blank Sheet of Paper

Conduction Induction Polarization

Conduction/Conservation of Charge -5 -3 -4 -4 -2 -18 14 -2

k= 8.99 x 109 N●m2/C2 Key Words: Force, (2) charges (could be elementary, electron, proton), distance, meters

Electric Force Charge Separation OR

Electric Field Key Words: Electric Field, Force, one charge (electron, proton, elementary charge)

Drawing Electric Fields

Key Words: Volts, Potential Difference, Work, Energy, Joules, Charge Units – J/C = Volt (V) Key Words: Volts, Potential Difference, Work, Energy, Joules, Charge

electron neutron proton Electric Field goes from positive to negative

A conducting sphere has a net charge of -4. 8E-17C A conducting sphere has a net charge of -4.8E-17C. What is the approximate number of excess electrons on the sphere? 300

A charge Q exerts a 12N force on another charge q A charge Q exerts a 12N force on another charge q. If the distance between the charges is double, what is the magnitude of the force exerted on Q by q? 3N

At what separation will two charges, each of magnitude, 6 µC, exert a force of 1.4N on each other?

Electrical charge interaction can be summarized by: a Electrical charge interaction can be summarized by: a. - charge repels other - charge. b. + charge repels other + charge. c. - charge and + charge attract each other. d. All of these. e. None of these. d

An electric field line must be? Parallel Perpendicular 0 degrees Tangent None of the above b

A rubber rod is rubbed by animal fur A rubber rod is rubbed by animal fur. If the fur donates 40 electrons to the rod, how many excess electrons does the rod have? How many electrons did the animal fur lose? What is the net charge on the animal fur? 40 40(1.6E-19) = 6.4E-18C

Is it possible to have a charge of 1.8E-17C? No because you get 112.5 excess elementary charges

In an electric field like so does the amount of force change in between the two plates?

A charge of +3.0 × 10-7 C experiences a force of 4.2 N when located 3.5 cm away from the charge in the electric field. What is the electric field strength at that point? 1.4E7N/C