Question 1

The effect of de- forestation on the ozone layer problem is

Accepted Answer

A)  essentially zero. 
B)  that it worsens the problem only if the wood is burned. 
C)  that it actually helps reduce the problem. 
D)  that it worsens the problem regardless of whether the wood is burned. 
A)  essentially zero. 
B)  that it worsens the problem only if the wood is burned. 
C)  that it actually helps reduce the problem. 
D)  that it worsens the problem regardless of whether the wood is burned. A

Question 2

The 1986 Susan Solomon expedition

Accepted Answer

A)  discovered that the sun's infrared is significantly absorbed by carbon dioxide. 
B)  discovered that solar radiation is most energetic at the frequency of yellow- green light. 
C)  confirmed that rain- forest destruction is a significant contributor to ozone depletion. 
D)  confirmed that CFCs are causing ozone depletion over Antarctica. 
E)  confirmed that fossil fuels are causing global warming. 
A)  discovered that the sun's infrared is significantly absorbed by carbon dioxide. 
B)  discovered that solar radiation is most energetic at the frequency of yellow- green light. 
C)  confirmed that rain- forest destruction is a significant contributor to ozone depletion. 
D)  confirmed that CFCs are causing ozone depletion over Antarctica. 
E)  confirmed that fossil fuels are causing global warming. D

Question 3

How does a radio station transmit a radio signal to your ear?

Accepted Answer

A)  Electrons moving in the station's antenna send out a sound wave that travels to your radio, where the wave is amplified and sent to your ear as a more intense sound wave. 
B)  Electrons moving in the station's antenna send out an electromagnetic wave that travels to your radio, where the wave is amplified and sent to your ear as a more intense electromagnetic wave. 
C)  Stationary positive and negative charges residing on the station's antenna exert electrostatic forces that act on your radio, causing the radio to send sound waves to your ear. 
D)  Electrons moving in the station's antenna send out an electromagnetic wave that travels to your radio, where the wave is transformed into a sound wave that travels to your ear. 
E)  The station's antenna sends an electric current through a wire that runs from the radio station to your radio, causing the radio to send sound waves to your ear. 
A)  Electrons moving in the station's antenna send out a sound wave that travels to your radio, where the wave is amplified and sent to your ear as a more intense sound wave. 
B)  Electrons moving in the station's antenna send out an electromagnetic wave that travels to your radio, where the wave is amplified and sent to your ear as a more intense electromagnetic wave. 
C)  Stationary positive and negative charges residing on the station's antenna exert electrostatic forces that act on your radio, causing the radio to send sound waves to your ear. 
D)  Electrons moving in the station's antenna send out an electromagnetic wave that travels to your radio, where the wave is transformed into a sound wave that travels to your ear. 
E)  The station's antenna sends an electric current through a wire that runs from the radio station to your radio, causing the radio to send sound waves to your ear. D

Question 4

Democritus believed that everything that is real is made of atoms. Are electromagnetic fields physically real, and are they made of atoms?

Accepted Answer

A)  No, electromagnetic fields are not physically real, and they are not made of atoms. 
B)  Electromagnetic fields are made of atoms, but are not physically real because they are nothing but the motions of these atoms. 
C)  Electromagnetic fields are made of atoms, but atoms themselves are not physically real and thus electromagnetic fields are not physically real. 
D)  Yes, electromagnetic are physically real, and they are made of atoms. 
E)  Electromagnetic fields are physically real, although they are not made of atoms. 
A)  No, electromagnetic fields are not physically real, and they are not made of atoms. 
B)  Electromagnetic fields are made of atoms, but are not physically real because they are nothing but the motions of these atoms. 
C)  Electromagnetic fields are made of atoms, but atoms themselves are not physically real and thus electromagnetic fields are not physically real. 
D)  Yes, electromagnetic are physically real, and they are made of atoms. 
E)  Electromagnetic fields are physically real, although they are not made of atoms.

Question 5

Two electromagnetic have different frequencies but equal amplitudes. The one with higher frequency has the

Accepted Answer

A)  shorter wavelength. 
B)  lower energy. 
C)  greater speed. 
D)  All of the above. 
E)  None of the above. 
A)  shorter wavelength. 
B)  lower energy. 
C)  greater speed. 
D)  All of the above. 
E)  None of the above.

Question 6

In which part of the electromagnetic spectrum does the sun emit the most intense radiation, i.e., in which part does the sun radiate the most energy?

Accepted Answer

A)  ultraviolet 
B)  infrared 
C)  gamma 
D)  radio 
E)  visible 
A)  ultraviolet 
B)  infrared 
C)  gamma 
D)  radio 
E)  visible

Question 7

It is easier to significantly alter Earth's O3 balance than its O2 balance because

Accepted Answer

A)  O3 is a highly reactive molecule whereas O2 is inert. 
B)  O3 is a very unstable molecule whereas O2 is stable. 
C)  O3 is a trace molecule in the atmosphere whereas O2 is not. 
D)  O3 is an inert molecule whereas O2 is highly reactive. 
E)  it is so much easier to produce O3. 
A)  O3 is a highly reactive molecule whereas O2 is inert. 
B)  O3 is a very unstable molecule whereas O2 is stable. 
C)  O3 is a trace molecule in the atmosphere whereas O2 is not. 
D)  O3 is an inert molecule whereas O2 is highly reactive. 
E)  it is so much easier to produce O3.

Question 8

The speed of light is

Accepted Answer

A)  3,000 km/s. 
B)  3 million km/s. 
C)  300 km/s. 
D)  3 km/s. 
E)  None of the above. 
A)  3,000 km/s. 
B)  3 million km/s. 
C)  300 km/s. 
D)  3 km/s. 
E)  None of the above.

Question 9

The CFC propellants used in aerosol cans are chemically inert gases. This inertness leads to problems with stratospheric ozone because

Accepted Answer

A)  inert gases are especially likely to react chemically with the atmosphere. 
B)  inert gases do not travel far in the atmosphere, so they are likely to react before rising very high. 
C)  inert gases can drift upward for great distances without being broken down by the atmosphere. 
D)  inert gases are especially attracted to other inert, or nonreactive, gases such as ozone. 
E)  inert gases are especially attracted to ozone due to the fact that ozone is so highly reactive. 
A)  inert gases are especially likely to react chemically with the atmosphere. 
B)  inert gases do not travel far in the atmosphere, so they are likely to react before rising very high. 
C)  inert gases can drift upward for great distances without being broken down by the atmosphere. 
D)  inert gases are especially attracted to other inert, or nonreactive, gases such as ozone. 
E)  inert gases are especially attracted to ozone due to the fact that ozone is so highly reactive.

Question 10

One possible feedback effect of global warming that could "run away" unpredictably is

Accepted Answer

A)  warming leading to decreased cloud cover leading to further warming. 
B)  ozone depletion that allows more ultraviolet to strike Earth, leading to further ozone depletion. 
C)  melting Arctic ice leading to increased absorption of radiation leading to further warming. 
D)  warming of the Pacific ocean stops the El Niño phenomenon which leads to further warming of the Pacific. 
A)  warming leading to decreased cloud cover leading to further warming. 
B)  ozone depletion that allows more ultraviolet to strike Earth, leading to further ozone depletion. 
C)  melting Arctic ice leading to increased absorption of radiation leading to further warming. 
D)  warming of the Pacific ocean stops the El Niño phenomenon which leads to further warming of the Pacific.

Question 11

Might a region of intergalactic [between the galaxies] space, containing no material particles, contain energy?

Accepted Answer

A)  No, because only material particles can possess energy. 
B)  No, because physically nothing exists except particles and empty space. 
C)  No, for both of the above reasons. 
D)  Yes, in the form of electromagnetic fields and other force fields. 
E)  Yes, it might contain the thermal energy of intergalactic gases. 
A)  No, because only material particles can possess energy. 
B)  No, because physically nothing exists except particles and empty space. 
C)  No, for both of the above reasons. 
D)  Yes, in the form of electromagnetic fields and other force fields. 
E)  Yes, it might contain the thermal energy of intergalactic gases.

Question 12

X- ray radiation typically comes from

Accepted Answer

A)  higher- energy electrons orbiting the nucleus in atoms. 
B)  electrons moving along a metal antenna. 
C)  charged particles moving within the nucleus. 
D)  thermal vibrations of molecules. 
E)  None of the above. 
A)  higher- energy electrons orbiting the nucleus in atoms. 
B)  electrons moving along a metal antenna. 
C)  charged particles moving within the nucleus. 
D)  thermal vibrations of molecules. 
E)  None of the above.

Question 13

A water wave spreading out in a circle across the surface of a pond is an example of

Accepted Answer

A)  a two- dimensional wave. 
B)  a three- dimensional wave. 
C)  a one- dimensional wave. 
D)  witchcraft. 
E)  particle motion, or mass motion, rather than wave motion. 
A)  a two- dimensional wave. 
B)  a three- dimensional wave. 
C)  a one- dimensional wave. 
D)  witchcraft. 
E)  particle motion, or mass motion, rather than wave motion.

Question 14

For every ton of coal burned, the approximate amount of CO2 injected into the atmosphere is

Accepted Answer

A)  between 3 and 4 tons. 
B)  a few pounds. 
C)  half a ton. 
D)  a ton. 
E)  none, because the CO2 is recovered in solid form. 
A)  between 3 and 4 tons. 
B)  a few pounds. 
C)  half a ton. 
D)  a ton. 
E)  none, because the CO2 is recovered in solid form.

Question 15

Two different continuous water waves on the surface of a pond would be expected to have roughly the same

Accepted Answer

A)  frequency. 
B)  amplitude. 
C)  energy. 
D)  wavelengths. 
E)  wave speeds. 
A)  frequency. 
B)  amplitude. 
C)  energy. 
D)  wavelengths. 
E)  wave speeds.

Question 16

In addition to the electric force law and the magnetic force law, the other key principle that is needed to explain electromagnetic waves is

Accepted Answer

A)  Newton's law of motion. 
B)  electromagnetic fields are established instantaneously. 
C)  electromagnetic forces can be felt across a distance. 
D)  forces always come in pairs, so for every sender of electromagnetic force there must be a receiver. 
E)  electromagnetic fields are not established instantaneously. 
A)  Newton's law of motion. 
B)  electromagnetic fields are established instantaneously. 
C)  electromagnetic forces can be felt across a distance. 
D)  forces always come in pairs, so for every sender of electromagnetic force there must be a receiver. 
E)  electromagnetic fields are not established instantaneously.

Question 17

Which of the following waves has the highest frequency?

Accepted Answer

A)  ultraviolet 
B)  visible 
C)  radio 
D)  sound 
E)  infrared 
A)  ultraviolet 
B)  visible 
C)  radio 
D)  sound 
E)  infrared

Question 18

Which of the following are true waves, as the word is defined in physics?

Accepted Answer

A)  deep ocean waves, or "swells" in the deep ocean 
B)  a sports wave, called "the wave," at a sports arena 
C)  Both of the above. 
D)  water rushing downstream 
E)  None of the above. 
A)  deep ocean waves, or "swells" in the deep ocean 
B)  a sports wave, called "the wave," at a sports arena 
C)  Both of the above. 
D)  water rushing downstream 
E)  None of the above.

Question 19

Which of the following is transported by all traveling waves?

Accepted Answer

A)  particles 
B)  matter 
C)  light 
D)  energy 
E)  both energy and matter 
A)  particles 
B)  matter 
C)  light 
D)  energy 
E)  both energy and matter

Question 20

When you send a wave pulse down a rope or Slinky, it eventually dies out. What has become of the energy?

Accepted Answer

A)  It was transformed into thermal energy. 
B)  It was transformed into electromagnetic energy. 
C)  It was transformed into Italian sausage. 
D)  It was transformed into elastic energy. 
E)  It vanished because energy is always lost in all physical processes. 
A)  It was transformed into thermal energy. 
B)  It was transformed into electromagnetic energy. 
C)  It was transformed into Italian sausage. 
D)  It was transformed into elastic energy. 
E)  It vanished because energy is always lost in all physical processes.

The effect of de- forestation on the ozone layer problem is

The 1986 Susan Solomon expedition

How does a radio station transmit a radio signal to your ear?

Democritus believed that everything that is real is made of atoms. Are electromagnetic fields physically real, and are they made of atoms?

Two electromagnetic have different frequencies but equal amplitudes. The one with higher frequency has the

In which part of the electromagnetic spectrum does the sun emit the most intense radiation, i.e., in which part does the sun radiate the most energy?

It is easier to significantly alter Earth's O₃balance than its O₂balance because

The speed of light is

The CFC propellants used in aerosol cans are chemically inert gases. This inertness leads to problems with stratospheric ozone because

One possible feedback effect of global warming that could "run away" unpredictably is

Might a region of intergalactic [between the galaxies] space, containing no material particles, contain energy?

X- ray radiation typically comes from

A water wave spreading out in a circle across the surface of a pond is an example of

For every ton of coal burned, the approximate amount of CO₂injected into the atmosphere is

Two different continuous water waves on the surface of a pond would be expected to have roughly the same

In addition to the electric force law and the magnetic force law, the other key principle that is needed to explain electromagnetic waves is

Which of the following waves has the highest frequency?

Which of the following are true waves, as the word is defined in physics?

Which of the following is transported by all traveling waves?

When you send a wave pulse down a rope or Slinky, it eventually dies out. What has become of the energy?

The Way of Science: Experience and Reason

Atoms: the Nature of Things

How Things Move: Galileo Asks the Right Questions

Why Things Move As They Do

Newtons Universe

Conservation of Energy: You Cant Get Ahead

Second Law of Thermodynamics: and You Cant Even Break Even

Light and Electromagnetism

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

Filters

Exam 9: Electromagnetism Radiation and Global Climate Change

The effect of de- forestation on the ozone layer problem is

The 1986 Susan Solomon expedition

How does a radio station transmit a radio signal to your ear?

Democritus believed that everything that is real is made of atoms. Are electromagnetic fields physically real, and are they made of atoms?

Two electromagnetic have different frequencies but equal amplitudes. The one with higher frequency has the

In which part of the electromagnetic spectrum does the sun emit the most intense radiation, i.e., in which part does the sun radiate the most energy?

It is easier to significantly alter Earth's O3 balance than its O2 balance because

The speed of light is

The CFC propellants used in aerosol cans are chemically inert gases. This inertness leads to problems with stratospheric ozone because

One possible feedback effect of global warming that could "run away" unpredictably is

Might a region of intergalactic [between the galaxies] space, containing no material particles, contain energy?

X- ray radiation typically comes from

A water wave spreading out in a circle across the surface of a pond is an example of

For every ton of coal burned, the approximate amount of CO2 injected into the atmosphere is

Two different continuous water waves on the surface of a pond would be expected to have roughly the same

In addition to the electric force law and the magnetic force law, the other key principle that is needed to explain electromagnetic waves is

Which of the following waves has the highest frequency?

Which of the following are true waves, as the word is defined in physics?

Which of the following is transported by all traveling waves?

When you send a wave pulse down a rope or Slinky, it eventually dies out. What has become of the energy?

The Way of Science: Experience and Reason

Atoms: the Nature of Things

How Things Move: Galileo Asks the Right Questions

Why Things Move As They Do

Newtons Universe

Conservation of Energy: You Cant Get Ahead

Second Law of Thermodynamics: and You Cant Even Break Even

Light and Electromagnetism

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

Filters

It is easier to significantly alter Earth's O₃balance than its O₂balance because

For every ton of coal burned, the approximate amount of CO₂injected into the atmosphere is