Question 1

To achieve a low equivalent resistance for a pair of resistors,connect them in

Accepted Answer

A) series. 
B) parallel. 
C) either of these 
A) series. 
B) parallel. 
C) either of these

Question 2

If you strip electrons from an atom,the atom becomes a

Accepted Answer

A) positive ion. 
B) negative ion. 
C) different element. 
A) positive ion. 
B) negative ion. 
C) different element.

Question 3

The safety fuse in an electric circuit is properly connected in

Accepted Answer

A) series with the circuit. 
B) parallel to the circuit. 
C) either of these 
A) series with the circuit. 
B) parallel to the circuit. 
C) either of these

Question 4

Two positively-charged plastic straws near each other tend to

Accepted Answer

A) attract each other. 
B) repel each other. 
C) neutralize each other. 
A) attract each other. 
B) repel each other. 
C) neutralize each other.

Question 5

The purpose of the third prong on a common electric plug of an appliance is

Accepted Answer

A) to handle three-phase electricity. 
B) to provide an alternate live wire. 
C) to connect the appliance to zero ground potential. 
D) a substitute for a safety fuse. 
E) all of the above 
A) to handle three-phase electricity. 
B) to provide an alternate live wire. 
C) to connect the appliance to zero ground potential. 
D) a substitute for a safety fuse. 
E) all of the above

Question 6

When we think of electric potential difference,we are thinking about

Accepted Answer

A) current. 
B) voltage. 
C) resistance. 
A) current. 
B) voltage. 
C) resistance.

Question 7

A charged balloon illustrates that something can have a great amount of

Accepted Answer

A) potential energy and a low voltage. 
B) voltage and a small potential energy. 
C) both voltage and potential energy. 
D) none of the above 
A) potential energy and a low voltage. 
B) voltage and a small potential energy. 
C) both voltage and potential energy. 
D) none of the above

Question 8

The voltage across a 10-ohm resistor carrying a current of 5 A is

Accepted Answer

A) 2 V. 
B) 5 V. 
C) 10 V. 
D) 20 V. 
E) more than 20 V. 
A) 2 V. 
B) 5 V. 
C) 10 V. 
D) 20 V. 
E) more than 20 V.

Question 9

A lamp rated 23W-120V means that it will deliver 23 W

Accepted Answer

A) when the voltage across it is 120 V. 
B) whether or not it is connected to 120 V. 
C) as long as the current is ac. 
D) none of the above 
A) when the voltage across it is 120 V. 
B) whether or not it is connected to 120 V. 
C) as long as the current is ac. 
D) none of the above

Question 10

The power dissipated in a 4-ohm resistor carrying 3 A is

Accepted Answer

A) 7 W. 
B) 18 W. 
C) 36 W. 
D) 48 W. 
E) not enough information 
A) 7 W. 
B) 18 W. 
C) 36 W. 
D) 48 W. 
E) not enough information

Question 11

The headlights,radio,and defroster fan in an automobile are connected in

Accepted Answer

A) series. 
B) parallel. 
C) order of energy efficiency. 
A) series. 
B) parallel. 
C) order of energy efficiency.

Question 12

Which is more dangerous,touching a faulty 120-V light fixture,or a Van de Graaff generator charged to 100,000 V?

Accepted Answer

A) light fixture 
B) generator 
C) both equally 
A) light fixture 
B) generator 
C) both equally

Question 13

The net electric charge on a current-carrying wire is normally

Accepted Answer

A) zero. 
B) equal and opposite to the charge within the wire. 
C) the voltage divided by the resistance. 
A) zero. 
B) equal and opposite to the charge within the wire. 
C) the voltage divided by the resistance.

Question 14

Compared to a single lamp connected to a battery,two lamps connected in parallel to the same battery will draw

Accepted Answer

A) more current. 
B) less current. 
C) the same current. 
A) more current. 
B) less current. 
C) the same current.

Question 15

The unit of measurement for electric power is

Accepted Answer

A) joules per second. 
B) watts. 
C) both are equivalent 
D) none of the above 
A) joules per second. 
B) watts. 
C) both are equivalent 
D) none of the above

Question 16

Ohm's law tells us that the amount of current produced in a circuit is

Accepted Answer

A) directly proportional to voltage. 
B) inversely proportional to resistance. 
C) both of these 
D) neither of these 
A) directly proportional to voltage. 
B) inversely proportional to resistance. 
C) both of these 
D) neither of these

Question 17

Compared to the amount of electric current in the filament of a lamp,the amount of current in the connecting wire is

Accepted Answer

A) definitely less. 
B) often less. 
C) actually more. 
D) the same. 
E) incredibly,all of the above 
A) definitely less. 
B) often less. 
C) actually more. 
D) the same. 
E) incredibly,all of the above

Question 18

To say a circuit is dc is to say that current in the circuit

Accepted Answer

A) has a single direction. 
B) alternates only slowly. 
C) is parallel to the connecting wires. 
A) has a single direction. 
B) alternates only slowly. 
C) is parallel to the connecting wires.

Question 19

The nucleus of an atom is charged

Accepted Answer

A) positively. 
B) negatively. 
C) both of these 
D) none of the above 
A) positively. 
B) negatively. 
C) both of these 
D) none of the above

Question 20

To keep chickens warm in a shed on a cold night,it is best to use

Accepted Answer

A) an incandescent lamp. 
B) a fluorescent lamp. 
C) an LED lamp. 
D) a CFL lamp. 
A) an incandescent lamp. 
B) a fluorescent lamp. 
C) an LED lamp. 
D) a CFL lamp.

Exam 8: Static and Current Electricity

To achieve a low equivalent resistance for a pair of resistors,connect them in

If you strip electrons from an atom,the atom becomes a

The safety fuse in an electric circuit is properly connected in

Two positively-charged plastic straws near each other tend to

The purpose of the third prong on a common electric plug of an appliance is

When we think of electric potential difference,we are thinking about

A charged balloon illustrates that something can have a great amount of

The voltage across a 10-ohm resistor carrying a current of 5 A is

A lamp rated 23W-120V means that it will deliver 23 W

The power dissipated in a 4-ohm resistor carrying 3 A is

The headlights,radio,and defroster fan in an automobile are connected in

Which is more dangerous,touching a faulty 120-V light fixture,or a Van de Graaff generator charged to 100,000 V?

The net electric charge on a current-carrying wire is normally

Compared to a single lamp connected to a battery,two lamps connected in parallel to the same battery will draw

The unit of measurement for electric power is

Ohm's law tells us that the amount of current produced in a circuit is

Compared to the amount of electric current in the filament of a lamp,the amount of current in the connecting wire is

To say a circuit is dc is to say that current in the circuit

The nucleus of an atom is charged

To keep chickens warm in a shed on a cold night,it is best to use

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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