Question 1

Like charges _________,unlike charges __________.

Accepted Answer

repel,attract

Question 2

-The light bulbs in this circuit are connected in

Accepted Answer

A) parallel. 
B) series. 
C) neither parallel nor series. 
D) a short circuit. 
A) parallel. 
B) series. 
C) neither parallel nor series. 
D) a short circuit. A

Question 3

The loss of usable energy in cables used to conduct electricity from power plants to cities is cause by ________________.

Accepted Answer

ohmic heating

Question 4

Ohmic heating is

Accepted Answer

A) always undesirable. 
B) used in light bulbs. 
C) what makes fuses "blow". 
D) all of the above. 
A) always undesirable. 
B) used in light bulbs. 
C) what makes fuses "blow". 
D) all of the above.

Question 5

​Match each item with the correct statement below.
-consists of charges flowing back and forth

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

Question 6

​Match each item with the correct statement below.
-has zero resistance

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

Question 7

Superconductivity is lost when a certain critical temperature is exceeded.

Accepted Answer

A) True 
 B)False

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 __________.

Accepted Answer

The answer of A battery operating a large flashlight produces...

Question 9

A heater is rated at 1200 watts for a 120-volt source.
-The current in amperes drawn by the heater is

Accepted Answer

A) 0.1. 
B) 10. 
C) 144,000. 
D) none of the above. 
A) 0.1. 
B) 10. 
C) 144,000. 
D) none of the above.

Question 10

Why do we use fuses?

Accepted Answer

A) to eliminate shock hazards 
B) to prevent fires 
C) to save on the cost of electricity 
D) to store charge 
A) to eliminate shock hazards 
B) to prevent fires 
C) to save on the cost of electricity 
D) to store charge

Question 11

Four things that the resistance of a conducting material depends on are __________,__________,__________ and ___________.

Accepted Answer

compositio

Question 12

The energy used by a 100-watt light bulb in 1 hour is 360,000 joules

Accepted Answer

A) True 
 B)False

Question 13

When a 12-volt car battery is short circuited with a wire,the current drawn from the battery is 100 amperes.The resistance of the wire is

Accepted Answer

A) zero. 
B) 0.12 ohms. 
C) 100/12 = 8.33 ohms. 
D) 1200 ohms. 
E) none of the above. 
A) zero. 
B) 0.12 ohms. 
C) 100/12 = 8.33 ohms. 
D) 1200 ohms. 
E) none of the above.

Question 14

​Match each item with the correct statement below.
-an atom with fewer electrons than protons

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

Question 15

​Match each item with the correct statement below.
-used to change AC voltages

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

Question 16

A heater is rated at 1200 watts for a 120-volt source.
-The current drawn by the heater is 10 amperes.

Accepted Answer

A) True 
 B)False

Question 17

Lightning is dangerous to humans because lightning strokes

Accepted Answer

A) carry large currents. 
B) have high voltages. 
C) have no resistance. 
D) fry whatever they hit. 
A) carry large currents. 
B) have high voltages. 
C) have no resistance. 
D) fry whatever they hit.

Question 18

Voltage is a measure of the energy per unit charge supplied by a battery.

Accepted Answer

A) True 
 B)False

Question 19

​Match each item with the correct statement below.
-like charges do this

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

Question 20

Semiconductor technology has been the basis for many new electronic devices.

Accepted Answer

A) True 
 B)False

Like charges _,unlike charges __.

-The light bulbs in this circuit are connected in

The loss of usable energy in cables used to conduct electricity from power plants to cities is cause by ________________.

Ohmic heating is

Match each item with the correct statement below. -consists of charges flowing back and forth

Match each item with the correct statement below. -has zero resistance

Superconductivity is lost when a certain critical temperature is exceeded.

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 __________.

A heater is rated at 1200 watts for a 120-volt source. -The current in amperes drawn by the heater is

Why do we use fuses?

Four things that the resistance of a conducting material depends on are ,, and _.

The energy used by a 100-watt light bulb in 1 hour is 360,000 joules

When a 12-volt car battery is short circuited with a wire,the current drawn from the battery is 100 amperes.The resistance of the wire is

Match each item with the correct statement below. -an atom with fewer electrons than protons

Match each item with the correct statement below. -used to change AC voltages

A heater is rated at 1200 watts for a 120-volt source. -The current drawn by the heater is 10 amperes.

Lightning is dangerous to humans because lightning strokes

Voltage is a measure of the energy per unit charge supplied by a battery.

Match each item with the correct statement below. -like charges do this

Semiconductor technology has been the basis for many new electronic devices.

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

Like charges _________,unlike charges __________.

-The light bulbs in this circuit are connected in

The loss of usable energy in cables used to conduct electricity from power plants to cities is cause by ________________.

Ohmic heating is

​Match each item with the correct statement below. -consists of charges flowing back and forth

​Match each item with the correct statement below. -has zero resistance

Superconductivity is lost when a certain critical temperature is exceeded.

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 __________.

A heater is rated at 1200 watts for a 120-volt source. -The current in amperes drawn by the heater is

Why do we use fuses?

Four things that the resistance of a conducting material depends on are __________,__________,__________ and ___________.

The energy used by a 100-watt light bulb in 1 hour is 360,000 joules

When a 12-volt car battery is short circuited with a wire,the current drawn from the battery is 100 amperes.The resistance of the wire is

​Match each item with the correct statement below. -an atom with fewer electrons than protons

​Match each item with the correct statement below. -used to change AC voltages

A heater is rated at 1200 watts for a 120-volt source. -The current drawn by the heater is 10 amperes.

Lightning is dangerous to humans because lightning strokes

Voltage is a measure of the energy per unit charge supplied by a battery.

​Match each item with the correct statement below. -like charges do this

Semiconductor technology has been the basis for many new electronic devices.

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

Like charges _,unlike charges __.

Match each item with the correct statement below. -consists of charges flowing back and forth

Match each item with the correct statement below. -has zero resistance

Four things that the resistance of a conducting material depends on are ,, and _.

Match each item with the correct statement below. -an atom with fewer electrons than protons

Match each item with the correct statement below. -used to change AC voltages

Match each item with the correct statement below. -like charges do this