Question 1

The matter field of a hydrogen atom could best be described as

Accepted Answer

A)  a collection of electrons. 
B)  an electromagnetic wave. 
C)  a cloud of photons. 
D)  a probability pattern. 
A)  a collection of electrons. 
B)  an electromagnetic wave. 
C)  a cloud of photons. 
D)  a probability pattern. D

Question 2

According to the philosophical ideas associated with quantum theory,

Accepted Answer

A)  science describes the objective universe, uninfluenced by humans. 
B)  microscopic particles do not have precise positions or velocities. 
C)  microscopic particles form the fundamental reality. 
D)  All of the above. 
E)  None of the above. 
A)  science describes the objective universe, uninfluenced by humans. 
B)  microscopic particles do not have precise positions or velocities. 
C)  microscopic particles form the fundamental reality. 
D)  All of the above. 
E)  None of the above. B

Question 3

A certain type of atom has only four energy levels, as shown in the figure above. The "spectral lines" produced by this element are all visible, except for one ultra- violet line. The quantum jump that produces the UV line is

Accepted Answer

A)  state 4 to 3. 
B)  state 1 to 4 
C)  state 4 to 1. 
D)  state 2 to 1. 
E)  Impossible to determine without further information. 
A)  state 4 to 3. 
B)  state 1 to 4 
C)  state 4 to 1. 
D)  state 2 to 1. 
E)  Impossible to determine without further information. C

Question 4

Which of the following is a consequence of Heisenberg's uncertainty principle?

Accepted Answer

A)  The fact that atoms don't collapse. 
B)  The uncertainties involved in determining a person's genetic inheritance when DNA molecules are combined. 
C)  The unpredictability of radioactive decay. 
D)  All of the above. 
E)  None of the above. 
A)  The fact that atoms don't collapse. 
B)  The uncertainties involved in determining a person's genetic inheritance when DNA molecules are combined. 
C)  The unpredictability of radioactive decay. 
D)  All of the above. 
E)  None of the above.

Question 5

Which of the following is a feature of Newtonian physics that is not correct according to quantum physics?

Accepted Answer

A)  Tiny particles form the fundamental reality. 
B)  Future events are predictable. 
C)  Nature is "local," i.e., there are no instantaneous connections at a distance. 
D)  All of the above. 
A)  Tiny particles form the fundamental reality. 
B)  Future events are predictable. 
C)  Nature is "local," i.e., there are no instantaneous connections at a distance. 
D)  All of the above.

Question 6

The most accurate measurements known are

Accepted Answer

A)  mass measurements. 
B)  spectroscopic measurements. 
C)  made with thermometers. 
D)  measurements of electric charge. 
A)  mass measurements. 
B)  spectroscopic measurements. 
C)  made with thermometers. 
D)  measurements of electric charge.

Question 7

When an atom emits radiation

Accepted Answer

A)  a photon makes a quantum jump from one quantum state to another. 
B)  a proton strikes a neutron to create a photon. 
C)  it emits a small portion of its electric charge. 
D)  an electron makes a quantum jump from one quantum state to another. 
E)  an electron moves in precisely one complete orbit around the nucleus. 
A)  a photon makes a quantum jump from one quantum state to another. 
B)  a proton strikes a neutron to create a photon. 
C)  it emits a small portion of its electric charge. 
D)  an electron makes a quantum jump from one quantum state to another. 
E)  an electron moves in precisely one complete orbit around the nucleus.

Question 8

According to Heisenberg's uncertainty principle, which of the following particles is the most predictable, in other words which has the smallest overall uncertainties as to its position and velocity?

Accepted Answer

A)  electron 
B)  hydrogen atom 
C)  proton 
D)  neutron 
E)  gold atom 
A)  electron 
B)  hydrogen atom 
C)  proton 
D)  neutron 
E)  gold atom

Question 9

Which of the following is an example of Heisenberg's uncertainty principle?

Accepted Answer

A)  The unpredictability of radioactive decay. 
B)  The unpredictability of a coin toss. 
C)  Both of the above. 
D)  The unpredictability of the weather. 
E)  All of the above. 
A)  The unpredictability of radioactive decay. 
B)  The unpredictability of a coin toss. 
C)  Both of the above. 
D)  The unpredictability of the weather. 
E)  All of the above.

Question 10

A certain type of atom has only four energy levels, as shown in the figure above. The total number of spectral lines produced by this element is

Accepted Answer

A)  6. 
B)  4. 
C)  10. 
D)  3. 
E)  impossible to determine without further information. 
A)  6. 
B)  4. 
C)  10. 
D)  3. 
E)  impossible to determine without further information.

Question 11

Which quantum characteristic(s) would quantum computers exploit in order to achieve great computational power with only a few individual quantum elements or "qubits"?

Accepted Answer

A)  Entanglement. 
B)  Wave packets. 
C)  Magnetic resonance. 
D)  Uncertainty. 
E)  Both uncertainty and entanglement. 
A)  Entanglement. 
B)  Wave packets. 
C)  Magnetic resonance. 
D)  Uncertainty. 
E)  Both uncertainty and entanglement.

Question 12

Can two microscopic [or quantum] particles be entangled even when they are exerting no forces on each other?

Accepted Answer

A)  Yes, they could be entangled but so far apart as to exert no significant forces on each other. 
B)  Yes, because they can still communicate with each other by means of electromagnetic radiation. 
C)  No, because entanglement occurs only by means of the electromagnetic force and the other fundamental forces. 
D)  No, because in order for a particle to be trapped in the field of another particle, it must feel the second particle's force field. 
E)  No, because the psi field is actually a force field. 
A)  Yes, they could be entangled but so far apart as to exert no significant forces on each other. 
B)  Yes, because they can still communicate with each other by means of electromagnetic radiation. 
C)  No, because entanglement occurs only by means of the electromagnetic force and the other fundamental forces. 
D)  No, because in order for a particle to be trapped in the field of another particle, it must feel the second particle's force field. 
E)  No, because the psi field is actually a force field.

Question 13

Suppose that a certain atom had just 4 different energy levels. How many different frequencies could be emitted by this atom?

Accepted Answer

A)  10 
B)  4 
C)  6 
D)  16 
E)  an infinite number. 
A)  10 
B)  4 
C)  6 
D)  16 
E)  an infinite number.

Question 14

Which of the following does quantum theory agree with?

Accepted Answer

A)  Microscopic particles, rather than the macroscopic world, form the fundamental reality. 
B)  It is possible to analyze physical phenomena and physical systems by separating them into their component parts and studying those parts individually. 
C)  Future events are entirely predetermined, or predictable. 
D)  All of the above. 
E)  None of the above. 
A)  Microscopic particles, rather than the macroscopic world, form the fundamental reality. 
B)  It is possible to analyze physical phenomena and physical systems by separating them into their component parts and studying those parts individually. 
C)  Future events are entirely predetermined, or predictable. 
D)  All of the above. 
E)  None of the above.

Question 15

Does a baseball have large quantum uncertainties, or small ones?

Accepted Answer

A)  Small, because the baseball has such a large mass. 
B)  Large, because the baseball has such a large mass. 
C)  Large, because the baseball has such a small mass. 
D)  Small, because the baseball has such a small mass. 
E)  It's impossible to tell unless we know how fast the baseball is moving. 
A)  Small, because the baseball has such a large mass. 
B)  Large, because the baseball has such a large mass. 
C)  Large, because the baseball has such a small mass. 
D)  Small, because the baseball has such a small mass. 
E)  It's impossible to tell unless we know how fast the baseball is moving.

Question 16

Although electrons do not normally have precise velocities, you can cause an electron to have a (fairly) precise velocity by

Accepted Answer

A)  measuring both its position and velocity at an earlier time. 
B)  measuring its frequency. 
C)  measuring its velocity. 
D)  measuring its position. 
E)  measuring the force it exerts on another electron. 
A)  measuring both its position and velocity at an earlier time. 
B)  measuring its frequency. 
C)  measuring its velocity. 
D)  measuring its position. 
E)  measuring the force it exerts on another electron.

Question 17

Suppose a certain type of atom had just 5 different energy levels. How many different frequencies could be emitted by a gas composed of atoms of this type?

Accepted Answer

A)  4 
B)  10 
C)  25 
D)  5 
E)  an infinite number 
A)  4 
B)  10 
C)  25 
D)  5 
E)  an infinite number

Question 18

Of all the various .TYPEs of scientific measurements that are possible to make, which type of scientific measurement has given us the most information about the physical universe?

Accepted Answer

A)  Spatial measurements, i.e., measurements of distance, area, and volume. 
B)  Energetics, i.e., measurements of the total energy produced by various physical processes. 
C)  Thermometry i.e., measurements of temperature. 
D)  Spectroscopy, i.e., measurements of spectra. 
E)  Measurements of mass and weight. 
A)  Spatial measurements, i.e., measurements of distance, area, and volume. 
B)  Energetics, i.e., measurements of the total energy produced by various physical processes. 
C)  Thermometry i.e., measurements of temperature. 
D)  Spectroscopy, i.e., measurements of spectra. 
E)  Measurements of mass and weight.

Question 19

A key component of one type of spectroscope for visible radiation is the

Accepted Answer

A)  mirror for separating the radiation beam. 
B)  electrostatic plate for bending and separating the radiation beam. 
C)  magnet for bending the radiation beam. 
D)  prism for separating the radiation beam. 
E)  filter for separating the different gases. 
A)  mirror for separating the radiation beam. 
B)  electrostatic plate for bending and separating the radiation beam. 
C)  magnet for bending the radiation beam. 
D)  prism for separating the radiation beam. 
E)  filter for separating the different gases.

Question 20

What happens to an electron's wave packet if an accurate velocity measurement is performed?

Accepted Answer

A)  It suddenly changes to a new wave packet having a very small uncertainty in position, but a large uncertainty in velocity. 
B)  Neither the wave packet nor the electron is affected by the measurement. 
C)  It suddenly changes to a new wave packet having a very small uncertainty in velocity, but a large uncertainty in position. 
D)  The wave packet is unaffected by the measurement, even though the electron itself makes a sudden change of state that is caused by the measurement. 
E)  It suddenly changes to a new wave packet having small uncertainties in both velocity and position. 
A)  It suddenly changes to a new wave packet having a very small uncertainty in position, but a large uncertainty in velocity. 
B)  Neither the wave packet nor the electron is affected by the measurement. 
C)  It suddenly changes to a new wave packet having a very small uncertainty in velocity, but a large uncertainty in position. 
D)  The wave packet is unaffected by the measurement, even though the electron itself makes a sudden change of state that is caused by the measurement. 
E)  It suddenly changes to a new wave packet having small uncertainties in both velocity and position.

The matter field of a hydrogen atom could best be described as

According to the philosophical ideas associated with quantum theory,

A certain type of atom has only four energy levels, as shown in the figure above. The "spectral lines" produced by this element are all visible, except for one ultra- violet line. The quantum jump that produces the UV line is

Which of the following is a consequence of Heisenberg's uncertainty principle?

Which of the following is a feature of Newtonian physics that is not correct according to quantum physics?

The most accurate measurements known are

When an atom emits radiation

According to Heisenberg's uncertainty principle, which of the following particles is the most predictable, in other words which has the smallest overall uncertainties as to its position and velocity?

Which of the following is an example of Heisenberg's uncertainty principle?

A certain type of atom has only four energy levels, as shown in the figure above. The total number of spectral lines produced by this element is

Which quantum characteristic(s) would quantum computers exploit in order to achieve great computational power with only a few individual quantum elements or "qubits"?

Can two microscopic [or quantum] particles be entangled even when they are exerting no forces on each other?

Suppose that a certain atom had just 4 different energy levels. How many different frequencies could be emitted by this atom?

Which of the following does quantum theory agree with?

Does a baseball have large quantum uncertainties, or small ones?

Although electrons do not normally have precise velocities, you can cause an electron to have a (fairly) precise velocity by

Suppose a certain type of atom had just 5 different energy levels. How many different frequencies could be emitted by a gas composed of atoms of this type?

Of all the various .TYPEs of scientific measurements that are possible to make, which type of scientific measurement has given us the most information about the physical universe?

A key component of one type of spectroscope for visible radiation is the

What happens to an electron's wave packet if an accurate velocity measurement is performed?

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

Electromagnetism Radiation and Global Climate Change

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

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 13: The Quantum Universe

The matter field of a hydrogen atom could best be described as

According to the philosophical ideas associated with quantum theory,

A certain type of atom has only four energy levels, as shown in the figure above. The "spectral lines" produced by this element are all visible, except for one ultra- violet line. The quantum jump that produces the UV line is

Which of the following is a consequence of Heisenberg's uncertainty principle?

Which of the following is a feature of Newtonian physics that is not correct according to quantum physics?

The most accurate measurements known are

When an atom emits radiation

According to Heisenberg's uncertainty principle, which of the following particles is the most predictable, in other words which has the smallest overall uncertainties as to its position and velocity?

Which of the following is an example of Heisenberg's uncertainty principle?

A certain type of atom has only four energy levels, as shown in the figure above. The total number of spectral lines produced by this element is

Which quantum characteristic(s) would quantum computers exploit in order to achieve great computational power with only a few individual quantum elements or "qubits"?

Can two microscopic [or quantum] particles be entangled even when they are exerting no forces on each other?

Suppose that a certain atom had just 4 different energy levels. How many different frequencies could be emitted by this atom?

Which of the following does quantum theory agree with?

Does a baseball have large quantum uncertainties, or small ones?

Although electrons do not normally have precise velocities, you can cause an electron to have a (fairly) precise velocity by

Suppose a certain type of atom had just 5 different energy levels. How many different frequencies could be emitted by a gas composed of atoms of this type?

Of all the various .TYPEs of scientific measurements that are possible to make, which type of scientific measurement has given us the most information about the physical universe?

A key component of one type of spectroscope for visible radiation is the

What happens to an electron's wave packet if an accurate velocity measurement is performed?

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

Electromagnetism Radiation and Global Climate Change

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

Filters