Question 1

A charged particle creates an electric ________ in the space around it.

Accepted Answer

The answer of A charged particle creates an electric ________...

Question 2

A heater is rated at 1200 watts for a 120-volt source.
-If two heaters are connected in parallel across the 120-volt source,the total power drawn from the source increases to 2400 watts.

Accepted Answer

A) True 
 B)False

Question 3

A battery supplies

Accepted Answer

A) AC current. 
B) DC current. 
C) resistance. 
D) voltage. 
E) positive ions. 
A) AC current. 
B) DC current. 
C) resistance. 
D) voltage. 
E) positive ions.

Question 4

When we say charges are 'positive' or 'negative' we are speaking of

Accepted Answer

A) two intrinsically different types of charge found in nature. 
B) an excess vs.a deficiency of charge. 
C) charges existing vs.not existing. 
D) none of the above. 
A) two intrinsically different types of charge found in nature. 
B) an excess vs.a deficiency of charge. 
C) charges existing vs.not existing. 
D) none of the above.

Question 5

An electric current can consist of

Accepted Answer

A) positive ions flowing in a liquid. 
B) negative ions flowing in a liquid. 
C) electrons flowing in a wire. 
D) all of the above. 
A) positive ions flowing in a liquid. 
B) negative ions flowing in a liquid. 
C) electrons flowing in a wire. 
D) all of the above.

Question 6

The resistance of a conducting material depends on its composition,length,diameter,and temperature.

Accepted Answer

A) True 
 B)False

Question 7

What is the usual symbol used to represent an amount of charge?

Accepted Answer

A) C 
B) q 
C) e 
D) none of the above 
A) C 
B) q 
C) e 
D) none of the above

Question 8

A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms.The voltage of the battery is 2 volts.

Accepted Answer

A) True 
 B)False

Question 9

The force on a charged object divided by the charge on the object is __________.

Accepted Answer

The answer of The force on a charged object divided...

Question 10

All three types of particles found in atoms are electrically charged.

Accepted Answer

A) True 
 B)False

Question 11

Electrons are negatively charged.

Accepted Answer

A) True 
 B)False

Question 12

In a parallel circuit,the size of the current flowing through each device may be different.

Accepted Answer

A) True 
 B)False

Question 13

Two charged bodies separated by a distance d exert an electrical force on each other.The distance d is doubled.The electrical force on each body is now 1/2 of the original force.

Accepted Answer

A) True 
 B)False

Question 14

A car headlight and an interior dome light use the same voltage,but the headlight consumes much more power because

Accepted Answer

A) its resistance is lower. 
B) the current in it is larger. 
C) it uses energy faster. 
D) all of the above 
A) its resistance is lower. 
B) the current in it is larger. 
C) it uses energy faster. 
D) all of the above

Question 15

An object that has zero resistance is a __________.

Accepted Answer

The answer of An object that has zero resistance is...

Question 16

An electric toaster operating on 120 volts draws a current of 6 amperes.The resistance of the toaster is __________.

Accepted Answer

The answer of An electric toaster operating on 120 volts...

Question 17

The energy used by a 100-watt light bulb in 1 hour is 100 kilowatt-hours.

Accepted Answer

A) True 
 B)False

Question 18

If the length of a wire increases,its resistance __________.

Accepted Answer

The answer of If the length of a wire increases,its...

Question 19

If the diameter of a wire increases,its resistance __________.

Accepted Answer

The answer of If the diameter of a wire increases,its...

Question 20

​Match each item with the correct statement below.
-it is measured in ohms

Accepted Answer

A) ​AC 
B) ​attract 
C) ​critical temperature 
D) ​electric current 
E) ​DC
F)​electric field
G)​negative ion
H)​positive ion
I)​repel
J)​resistance
K)​semiconductor
L)​transformer
M)​superconductor
N)​voltage
O)​electric charge
P)​ohmic heating 
A) ​AC 
B) ​attract 
C) ​critical temperature 
D) ​electric current 
E) ​DC
F)​electric field
G)​negative ion
H)​positive ion
I)​repel
J)​resistance
K)​semiconductor
L)​transformer
M)​superconductor
N)​voltage
O)​electric charge
P)​ohmic heating

A charged particle creates an electric ________ in the space around it.

A heater is rated at 1200 watts for a 120-volt source. -If two heaters are connected in parallel across the 120-volt source,the total power drawn from the source increases to 2400 watts.

A battery supplies

When we say charges are 'positive' or 'negative' we are speaking of

An electric current can consist of

The resistance of a conducting material depends on its composition,length,diameter,and temperature.

What is the usual symbol used to represent an amount of charge?

A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms.The voltage of the battery is 2 volts.

The force on a charged object divided by the charge on the object is __________.

All three types of particles found in atoms are electrically charged.

Electrons are negatively charged.

In a parallel circuit,the size of the current flowing through each device may be different.

Two charged bodies separated by a distance d exert an electrical force on each other.The distance d is doubled.The electrical force on each body is now 1/2 of the original force.

A car headlight and an interior dome light use the same voltage,but the headlight consumes much more power because

An object that has zero resistance is a __________.

An electric toaster operating on 120 volts draws a current of 6 amperes.The resistance of the toaster is __________.

The energy used by a 100-watt light bulb in 1 hour is 100 kilowatt-hours.

If the length of a wire increases,its resistance __________.

If the diameter of a wire increases,its resistance __________.

Match each item with the correct statement below. -it is measured in ohms

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electromagnetism and Em Waves

Optics

Atomic Physics

Nuclear Physics

Special Relativity and Elementary Particles

Filters

Exam 7: Electricity

A charged particle creates an electric ________ in the space around it.

A heater is rated at 1200 watts for a 120-volt source. -If two heaters are connected in parallel across the 120-volt source,the total power drawn from the source increases to 2400 watts.

A battery supplies

When we say charges are 'positive' or 'negative' we are speaking of

An electric current can consist of

The resistance of a conducting material depends on its composition,length,diameter,and temperature.

What is the usual symbol used to represent an amount of charge?

A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms.The voltage of the battery is 2 volts.

The force on a charged object divided by the charge on the object is __________.

All three types of particles found in atoms are electrically charged.

Electrons are negatively charged.

In a parallel circuit,the size of the current flowing through each device may be different.

Two charged bodies separated by a distance d exert an electrical force on each other.The distance d is doubled.The electrical force on each body is now 1/2 of the original force.

A car headlight and an interior dome light use the same voltage,but the headlight consumes much more power because

An object that has zero resistance is a __________.

An electric toaster operating on 120 volts draws a current of 6 amperes.The resistance of the toaster is __________.

The energy used by a 100-watt light bulb in 1 hour is 100 kilowatt-hours.

If the length of a wire increases,its resistance __________.

If the diameter of a wire increases,its resistance __________.

​Match each item with the correct statement below. -it is measured in ohms

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electromagnetism and Em Waves

Optics

Atomic Physics

Nuclear Physics

Special Relativity and Elementary Particles

Filters

Match each item with the correct statement below. -it is measured in ohms