Any help is greatly appreciated. Thanks 
1) The charge on a single electron or proton is
a) 1.6 x 10^-19 b) 6.25 x 10^18 c) 1.6 x 10^-18 d) 9.0 x 10^9
2) If the charge on each of two objects is doubled, the electric force changes by
a) 2 b) ½ c) 4 d) ¼
3) If two charged objects are moved three times closer, the electric force changes by
a)3 b) 1/3 c) 9 d) 1/9
4) Similarly charged objects
a) attract b) repel c) have no effect on each other
5) Lightning rods
a) prevent lightning b) are made of non conducting stuff c) are never grounded d) have a discharging effect
6) The presence of an electric charge is detected by using a/an
a) capacitor b) electroscope c) transformer d) diode
7) When a hard rubber rod is rubbed with fur
a) electrons are transferred from the fur to the rod b) electrons are transferred from the rod to the fur
c) the rod is an insulator and will not pick up a charge
10) If a charged rubber rod is brought near the knob of an electroscope, the leaves of the electroscope become
a) positively charged b) temporarily positive c) negatively charged d) temporarily negative
11) The unit symbolized by the Greek letter omega is used to measure
a) voltage b) emf c) current d) resistance
12) The direction of an electric field is the direction that a ___ test charge will move when placed in a field.
a) negative b) positive c) neutral
13) The product of volts times amperes equals
a) resistance b) current c) power d) energy
14) Which change in a series circuit would reduce the current flow?
a) increase resistance b) increase voltage c) decrease resistance d) none of these
15) As an electric field becomes stronger the field lines should be drawn
a) thicker b) closer c) thinner d) farther apart
16) Which of the following statements is not true of a charged object?
a) it may attract another charged object b) it may repel another charged object
c) it always attracts a neutral object d) it always repels a neutral object
17) The kilowatt hour is a unit of
a) work b) power c) energy d) charge
18) If an electric circuit, part of the work done by the current always appears as
a) light b) heat c) sound d) rotary motion
19) Three 6-ohm resistors are connected in series. Their total resistance is
a) 2 ohms b) 6 ohms c) 12 ohms d) 18 ohms
20) A 5-amp current flows through a 10-ohm resistor. The voltage drop across the resistor is
a) ½ b) 2 c) 15 d) 50
21) A 1-ohm resistor, a 1000-ohm resistor and a 2000-ohm resistor are connected in parallel. The total resistance of the circuit is
a) less than 1 b) greater than 1000 c) greater than 2000 d) greater than 3000
22) Touching an object to earth to eliminate excess charge is
a) conduction b) induction c) grounding d) friction
23) An electric field has
a) magnitude b) direction c) both a and b
24) Electrical resistance in a wire depends on
a) conductivity b) length c) thickness d) all of these
25) A positive ion has
a) one proton b) more electrons than protons c) more protons than electrons
26) Compared to thin wires, electrical resistance in thick wires is
a) greater b) less c) the same
27) When connected to a 120-volt power supply, how much current exists in a light bulb of resistance 240 ohms?
a) 288,000 A b) 240 A c) 120 A d) 0.5 A
28) Coulumbs Law states that the force between two charged objects depends
a) directly on the mass of the charged objects b) inversely on the square of the distance between objects
c) inversely on the charges of the objects d) none of the above
29) In a good insulator, electrons are usually
a) free to move around b) tightly bound c) free to move around after an impurity is added
30) Which of the following are not synonyms for voltage?
a) emf b) electric potential c) electric pressure d) capacitance
31) Current from a battery is
a) ac b) dc
32) The common household voltage is
a) 0 V b) 100 V c) 120 V d) 250 V
33) In an alternating current, electron flow is
a) slower than a snail’s pace b) almost the speed of light c) simply back and forth, going nowhere
34) The primary reason a bird can perch harmlessly on a bare high voltage wire is that
a) a bird has a very high electrical resistance b) a bird’s feet are close together
c) there is no potential difference across a bird’s feet d) all of these
35) Where do the electrons come from that produce heat and light in a light bulb?
a) the wall plug b) the air c) the power company d) bulb’s filament
36) How much power is used by a 6-volt flashlight battery that draws 0.5 A of current?
a) 30 W b) 12 W c) 6 W d) 3 W
37) When two light bulbs are connected in series
a) the same amount of current flows through each one
b) current through each bulb is proportional to its resistance
38) When resistors are put in series next to each other, their overall resistance is
a) larger than that of any individual resistor b) smaller than the resistance of any of the resistor
1) The charge on a single electron or proton is
a) 1.6 x 10^-19 b) 6.25 x 10^18 c) 1.6 x 10^-18 d) 9.0 x 10^9
2) If the charge on each of two objects is doubled, the electric force changes by
a) 2 b) ½ c) 4 d) ¼
3) If two charged objects are moved three times closer, the electric force changes by
a)3 b) 1/3 c) 9 d) 1/9
4) Similarly charged objects
a) attract b) repel c) have no effect on each other
5) Lightning rods
a) prevent lightning b) are made of non conducting stuff c) are never grounded d) have a discharging effect
6) The presence of an electric charge is detected by using a/an
a) capacitor b) electroscope c) transformer d) diode
7) When a hard rubber rod is rubbed with fur
a) electrons are transferred from the fur to the rod b) electrons are transferred from the rod to the fur
c) the rod is an insulator and will not pick up a charge
10) If a charged rubber rod is brought near the knob of an electroscope, the leaves of the electroscope become
a) positively charged b) temporarily positive c) negatively charged d) temporarily negative
11) The unit symbolized by the Greek letter omega is used to measure
a) voltage b) emf c) current d) resistance
12) The direction of an electric field is the direction that a ___ test charge will move when placed in a field.
a) negative b) positive c) neutral
13) The product of volts times amperes equals
a) resistance b) current c) power d) energy
14) Which change in a series circuit would reduce the current flow?
a) increase resistance b) increase voltage c) decrease resistance d) none of these
15) As an electric field becomes stronger the field lines should be drawn
a) thicker b) closer c) thinner d) farther apart
16) Which of the following statements is not true of a charged object?
a) it may attract another charged object b) it may repel another charged object
c) it always attracts a neutral object d) it always repels a neutral object
17) The kilowatt hour is a unit of
a) work b) power c) energy d) charge
18) If an electric circuit, part of the work done by the current always appears as
a) light b) heat c) sound d) rotary motion
19) Three 6-ohm resistors are connected in series. Their total resistance is
a) 2 ohms b) 6 ohms c) 12 ohms d) 18 ohms
20) A 5-amp current flows through a 10-ohm resistor. The voltage drop across the resistor is
a) ½ b) 2 c) 15 d) 50
21) A 1-ohm resistor, a 1000-ohm resistor and a 2000-ohm resistor are connected in parallel. The total resistance of the circuit is
a) less than 1 b) greater than 1000 c) greater than 2000 d) greater than 3000
22) Touching an object to earth to eliminate excess charge is
a) conduction b) induction c) grounding d) friction
23) An electric field has
a) magnitude b) direction c) both a and b
24) Electrical resistance in a wire depends on
a) conductivity b) length c) thickness d) all of these
25) A positive ion has
a) one proton b) more electrons than protons c) more protons than electrons
26) Compared to thin wires, electrical resistance in thick wires is
a) greater b) less c) the same
27) When connected to a 120-volt power supply, how much current exists in a light bulb of resistance 240 ohms?
a) 288,000 A b) 240 A c) 120 A d) 0.5 A
28) Coulumbs Law states that the force between two charged objects depends
a) directly on the mass of the charged objects b) inversely on the square of the distance between objects
c) inversely on the charges of the objects d) none of the above
29) In a good insulator, electrons are usually
a) free to move around b) tightly bound c) free to move around after an impurity is added
30) Which of the following are not synonyms for voltage?
a) emf b) electric potential c) electric pressure d) capacitance
31) Current from a battery is
a) ac b) dc
32) The common household voltage is
a) 0 V b) 100 V c) 120 V d) 250 V
33) In an alternating current, electron flow is
a) slower than a snail’s pace b) almost the speed of light c) simply back and forth, going nowhere
34) The primary reason a bird can perch harmlessly on a bare high voltage wire is that
a) a bird has a very high electrical resistance b) a bird’s feet are close together
c) there is no potential difference across a bird’s feet d) all of these
35) Where do the electrons come from that produce heat and light in a light bulb?
a) the wall plug b) the air c) the power company d) bulb’s filament
36) How much power is used by a 6-volt flashlight battery that draws 0.5 A of current?
a) 30 W b) 12 W c) 6 W d) 3 W
37) When two light bulbs are connected in series
a) the same amount of current flows through each one
b) current through each bulb is proportional to its resistance
38) When resistors are put in series next to each other, their overall resistance is
a) larger than that of any individual resistor b) smaller than the resistance of any of the resistor