Question 1

The type of EM radiation that has wavelength just a bit longer than that of visible light is

Accepted Answer

A) ultraviolet. 
B) infrared. 
C) x-ray. 
D) microwave. 
E) gamma ray. 
A) ultraviolet. 
B) infrared. 
C) x-ray. 
D) microwave. 
E) gamma ray.

Question 2

For a body emitting blackbody radiation,the total power emitted is proportional to the 4th power of the body's absolute temperature:   (T in kelvins)
and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to:   (   in meters,T in kelvins)
Assume an object is emitting blackbody radiation.
-As the temperature of an object increases,the wavelength of the brightest light emitted __________.

Accepted Answer

The answer of For a body emitting blackbody radiation,the total...

Question 3

Three devices that use electromagnetic induction in their operation are generators,transformers,and dynamic microphones.

Accepted Answer

A) True 
 B)False

Question 4

For a body emitting blackbody radiation,the total power emitted is proportional to the 4th power of the body's absolute temperature:   (T in kelvins)
and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to:   (   in meters,T in kelvins)
Assume an object is emitting blackbody radiation.
-If the Kelvin temperature of an object is doubled,the amount of radiant energy emitted each second is ____________ the original amount.

Accepted Answer

A) 1/16th 
B) half 
C) the same as 
D) 2 times 
E) 16 times 
A) 1/16th 
B) half 
C) the same as 
D) 2 times 
E) 16 times

Question 5

For a body emitting blackbody radiation,the total power emitted is proportional to the 4th power of the body's absolute temperature:   (T in kelvins)
and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to:   (   in meters,T in kelvins)
Assume an object is emitting blackbody radiation.
-If the Kelvin temperature of a body is doubled,the wavelength of the most intense light is ____________ the wavelength originally of the most intense light.

Accepted Answer

A) 1/16th 
B) half 
C) the same as 
D) 2 times 
E) 16 times 
A) 1/16th 
B) half 
C) the same as 
D) 2 times 
E) 16 times

Question 6

For a body emitting blackbody radiation,the total power emitted is proportional to the 4th power of the body's absolute temperature:   (T in kelvins)
and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to:   (   in meters,T in kelvins)
Assume an object is emitting blackbody radiation.
-If the Kelvin temperature of a body is doubled,the wavelength of the most intense light is __________ the wavelength originally of the most intense light.

Accepted Answer

The answer of For a body emitting blackbody radiation,the total...

Question 7

​Match each item with the correct statement below.
-only the very lowest frequencies of these waves can penetrate ocean water

Accepted Answer

A) ​blackbody radiation 
B) ​carbon dioxide 
C) ​electromagnetic induction 
D) ​gamma rays 
E) ​greenhouse effect
F)​infrared
G)​ionosphere
H)​lodestone
I)​magnetic field
J)​microwaves
K)​ozone
L)​radio waves
M)​transformer
N)​ultraviolet
O)​x rays 
A) ​blackbody radiation 
B) ​carbon dioxide 
C) ​electromagnetic induction 
D) ​gamma rays 
E) ​greenhouse effect
F)​infrared
G)​ionosphere
H)​lodestone
I)​magnetic field
J)​microwaves
K)​ozone
L)​radio waves
M)​transformer
N)​ultraviolet
O)​x rays

Question 8

​Match each item with the correct statement below.
-generators and dynamic microphones utilize this

Accepted Answer

A) ​blackbody radiation 
B) ​carbon dioxide 
C) ​electromagnetic induction 
D) ​gamma rays 
E) ​greenhouse effect
F)​infrared
G)​ionosphere
H)​lodestone
I)​magnetic field
J)​microwaves
K)​ozone
L)​radio waves
M)​transformer
N)​ultraviolet
O)​x rays 
A) ​blackbody radiation 
B) ​carbon dioxide 
C) ​electromagnetic induction 
D) ​gamma rays 
E) ​greenhouse effect
F)​infrared
G)​ionosphere
H)​lodestone
I)​magnetic field
J)​microwaves
K)​ozone
L)​radio waves
M)​transformer
N)​ultraviolet
O)​x rays

Question 9

A magnetic field exerts a force on an electric charge if the charge is

Accepted Answer

A) positive. 
B) negative. 
C) moving. 
D) stationary. 
E) any of the above. 
A) positive. 
B) negative. 
C) moving. 
D) stationary. 
E) any of the above.

Question 10

The EM wave that has the lowest frequency in this list is

Accepted Answer

A) ultraviolet. 
B) infrared. 
C) x-rays. 
D) microwave. 
E) gamma rays. 
A) ultraviolet. 
B) infrared. 
C) x-rays. 
D) microwave. 
E) gamma rays.

Question 11

A coil of wire is connected to a galvanometer.When the coil is rotated in a magnetic field,the galvanometer records a current.The current results because

Accepted Answer

A) the coil acts like a transformer. 
B) the free electrons in the conductor experience a force when they move in the magnetic field. 
C) an electromagnetic wave is generated. 
D) the wire is ferromagnetic. 
E) none of the above. 
A) the coil acts like a transformer. 
B) the free electrons in the conductor experience a force when they move in the magnetic field. 
C) an electromagnetic wave is generated. 
D) the wire is ferromagnetic. 
E) none of the above.

Question 12

A coil of wire is connected to a galvanometer.When a bar magnet is moved in and out of the coil,the galvanometer records a current.The current results because

Accepted Answer

A) the coil acts like a transformer. 
B) the changing magnetic field induces an electric field in the wire. 
C) an electromagnetic wave is generated. 
D) the wire is ferromagnetic. 
E) none of the above 
A) the coil acts like a transformer. 
B) the changing magnetic field induces an electric field in the wire. 
C) an electromagnetic wave is generated. 
D) the wire is ferromagnetic. 
E) none of the above

Question 13

The wavelength of a radio wave from an FM station broadcasting at 93.9 megahertz on your radio dial is 0.313 meters.

Accepted Answer

A) True 
 B)False

Question 14

A superconductor expels any magnetic field from its interior.This is called

Accepted Answer

A) electromagnetic induction. 
B) Maxwell's effect. 
C) magnetic declination. 
D) the Meissner effect. 
E) none of the above. 
A) electromagnetic induction. 
B) Maxwell's effect. 
C) magnetic declination. 
D) the Meissner effect. 
E) none of the above.

Question 15

The type of EM radiation that causes your skin to tan is

Accepted Answer

A) ultraviolet. 
B) infrared. 
C) x-rays. 
D) microwave. 
E) gamma rays. 
A) ultraviolet. 
B) infrared. 
C) x-rays. 
D) microwave. 
E) gamma rays.

Question 16

A changing magnetic field produces an electric field.

Accepted Answer

A) True 
 B)False

Question 17

The ozone layer absorbs __________ radiation from sunlight.

Accepted Answer

The answer of The ozone layer absorbs __________ radiation from...

Question 18

The direction of a magnetic field at a point can be determined by

Accepted Answer

A) a generator. 
B) a compass. 
C) a transformer. 
D) electromagnetic induction. 
E) none of the above. 
A) a generator. 
B) a compass. 
C) a transformer. 
D) electromagnetic induction. 
E) none of the above.

Question 19

For a body emitting blackbody radiation,the total power emitted is proportional to the 4th power of the body's absolute temperature:   (T in kelvins)
and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to:   (   in meters,T in kelvins)
Assume an object is emitting blackbody radiation.
-As the temperature of an object increases,the wavelength of the brightest light emitted increases.

Accepted Answer

A) True 
 B)False

Question 20

The type of EM radiation that has wavelength just a bit longer than that of visible light is __________.

Accepted Answer

The answer of The type of EM radiation that has...

The type of EM radiation that has wavelength just a bit longer than that of visible light is

Three devices that use electromagnetic induction in their operation are generators,transformers,and dynamic microphones.

Match each item with the correct statement below. -only the very lowest frequencies of these waves can penetrate ocean water

Match each item with the correct statement below. -generators and dynamic microphones utilize this

A magnetic field exerts a force on an electric charge if the charge is

The EM wave that has the lowest frequency in this list is

A coil of wire is connected to a galvanometer.When the coil is rotated in a magnetic field,the galvanometer records a current.The current results because

A coil of wire is connected to a galvanometer.When a bar magnet is moved in and out of the coil,the galvanometer records a current.The current results because

The wavelength of a radio wave from an FM station broadcasting at 93.9 megahertz on your radio dial is 0.313 meters.

A superconductor expels any magnetic field from its interior.This is called

The type of EM radiation that causes your skin to tan is

A changing magnetic field produces an electric field.

The ozone layer absorbs __________ radiation from sunlight.

The direction of a magnetic field at a point can be determined by

The type of EM radiation that has wavelength just a bit longer than that of visible light is __________.

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Optics

Atomic Physics

Nuclear Physics

Special Relativity and Elementary Particles

Filters

Exam 8: Electromagnetism and Em Waves

The type of EM radiation that has wavelength just a bit longer than that of visible light is

Three devices that use electromagnetic induction in their operation are generators,transformers,and dynamic microphones.

​Match each item with the correct statement below. -only the very lowest frequencies of these waves can penetrate ocean water

​Match each item with the correct statement below. -generators and dynamic microphones utilize this

A magnetic field exerts a force on an electric charge if the charge is

The EM wave that has the lowest frequency in this list is

A coil of wire is connected to a galvanometer.When the coil is rotated in a magnetic field,the galvanometer records a current.The current results because

A coil of wire is connected to a galvanometer.When a bar magnet is moved in and out of the coil,the galvanometer records a current.The current results because

The wavelength of a radio wave from an FM station broadcasting at 93.9 megahertz on your radio dial is 0.313 meters.

A superconductor expels any magnetic field from its interior.This is called

The type of EM radiation that causes your skin to tan is

A changing magnetic field produces an electric field.

The ozone layer absorbs __________ radiation from sunlight.

The direction of a magnetic field at a point can be determined by

The type of EM radiation that has wavelength just a bit longer than that of visible light is __________.

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Optics

Atomic Physics

Nuclear Physics

Special Relativity and Elementary Particles

Filters

Match each item with the correct statement below. -only the very lowest frequencies of these waves can penetrate ocean water

Match each item with the correct statement below. -generators and dynamic microphones utilize this