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D.J. TANNER
DANNY TANNER
JOEY GLADSTONE
JESSE KATSOPOLIS
100
In 2004, the number of electrons delivered to an average American home by an average power utility was a. zero. b. 110. c. 220. d. billions of billions. e. none of the above
a. zero.
100
How much power is used by a 12.0-V car battery that draws 0.5 A of current? a. 0.5 W b. 6 W c. 12 W d. 24 W e. 30 W
b. 6 W
100
If two negative charges are held close together and then released, the charges will a. accelerate toward each other. b. accelerate away from each other. c. not move. d. move at a constant speed away from each other.
b. accelerate away from each other.
100
A 5-C charge is located near a positively charged sphere so that it has 50 J of electric potential energy. Its electric potential is a. 2 V. b. 5 V. c. 10 V. d. 20 V. e. 250 V.
c. 10 V.
200
Power outlets in our homes typically have a potential difference of a. 30 V. b. 120 A. c. 60 A. d. 240 V. e. 120 V.
e. 120 V.
200
A 120-watt light bulb is connected to a 120-V outlet. How much current is in the light bulb? a. 0.5 A b. 1 A c. 2 A d. 6 A e. more than 6 A
b. 1 A
200
A volt is a unit of a. charge. b. electric potential. c. energy. d. work. e. current.
b. electric potential.
200
(T/F) In order to make a flashlight bulb light up, all you need to do is to run a wire from the positive terminal of a flashlight battery to the center of the bulb's base.
FALSE
300
When an 8-V battery is connected to a resistor, 2 A of current flows in the resistor. What is the resistor's value? a. 2 ohms b. 4 ohms c. 8 ohms d. 16 ohms e. more than 16 ohms
b. 4 ohms
300
An electric field has a. direction. b. magnitude. c. Both A and B
c. Both A and B
300
The electric field outside a Van de Graaff generator may be enormous, while inside the spherical dome, the electric field is a. even more enormous. b. almost as enormous. c. zero.
c. zero.
300
(T/F) In a series circuit, the total voltage drop across a series of resistors is the sum of voltage drops across each individual resistor.
TRUE
400
The current through a 5-ohm resistor connected to a 150-V power supply is a. 1A. b. 10 A. c. 30 A. d. 150 A. e. none of the above
c. 30 A.
400
Electrical potential energy is the energy a charged object has because of its a. momentum. b. location. c. mass. d. motion. e. volume.
b. location.
400
Electrical potential energy per charge is electric a. force. b. power. c. potential. d. work.
c. potential.
400
(T/F) When light bulbs are connected in series, all carry the same current regardless of their resistances.
TRUE
500
A 15-ohm resistor has a 5-A current in it. What is the voltage across the resistor? a. 5 V b. 15 V c. 20 V d. 25 V e. more than 25 V
e. more than 25 V
500
A small, positively charged object near a positively charged sphere is moved closer to the sphere. The electrical potential energy of the small object a. stays the same. b. decreases. c. increases.
c. increases.
500
A 2-C charge experiences a force of 40 N when put at a certain location in space. The electric field at that location is a. 2 N/C. b. 20 N/C. c. 30 N/C. d. 40 N/C. e. 60 N/C.
b. 20 N/C.
500
(T/F) In a parallel circuit, current in each branch is the same.
FALSE