Question 1

One similarity between photons and Z particles is that

Accepted Answer

A)  both are exchange particles for the electroweak force. 
B)  both have charge. 
C)  both travel at lightspeed. 
D)  both have mass. 
E)  both are exchange particles for the strong force. 
A)  both are exchange particles for the electroweak force. 
B)  both have charge. 
C)  both travel at lightspeed. 
D)  both have mass. 
E)  both are exchange particles for the strong force.

Question 2

Which of the following are quanta of a matter field?

Accepted Answer

A)  quarks 
B)  electrons 
C)  Both of the above. 
D)  photons 
E)  All of the above. 
A)  quarks 
B)  electrons 
C)  Both of the above. 
D)  photons 
E)  All of the above.

Question 3

The basic idea of the "string" hypothesis is that the fundamental particles are

Accepted Answer

A)  made of chocolate fudge. 
B)  very tiny hollow spheres. 
C)  tiny loops of infinitely slender material. 
D)  infinitely long and infinitely slender objects. 
E)  just geometric points (infinitely tiny points). 
A)  made of chocolate fudge. 
B)  very tiny hollow spheres. 
C)  tiny loops of infinitely slender material. 
D)  infinitely long and infinitely slender objects. 
E)  just geometric points (infinitely tiny points).

Question 4

Which force is the most difficult to incorporate into a single unified theory of the fundamental forces?

Accepted Answer

A)  the electromagnetic force 
B)  the weak force 
C)  the armed forces 
D)  centrifugal forces 
E)  the gravitational force 
A)  the electromagnetic force 
B)  the weak force 
C)  the armed forces 
D)  centrifugal forces 
E)  the gravitational force

Question 5

Why can we never create matter?

Accepted Answer

A)  because matter is always conserved 
B)  because we aren't capable of creating another universal "big bang" 
C)  because it is impossible to create the fundamental particles such as electrons and protons 
D)  because energy is always conserved 
E)  Actually, we do create matter frequently in the lab. 
A)  because matter is always conserved 
B)  because we aren't capable of creating another universal "big bang" 
C)  because it is impossible to create the fundamental particles such as electrons and protons 
D)  because energy is always conserved 
E)  Actually, we do create matter frequently in the lab.

Question 6

One currently- used practical application of antimatter is in

Accepted Answer

A)  the discovery of small cracks in metallic machinery such as airplane wings. 
B)  a popular breakfast cereal made of antimatter. 
C)  propulsion of space vehicles. 
D)  nuclear magnetic resonance (NMR) medical diagnosis. 
E)  positron emission tomography (PET) scans of the brain. 
A)  the discovery of small cracks in metallic machinery such as airplane wings. 
B)  a popular breakfast cereal made of antimatter. 
C)  propulsion of space vehicles. 
D)  nuclear magnetic resonance (NMR) medical diagnosis. 
E)  positron emission tomography (PET) scans of the brain.

Question 7

We never find isolated, individual quarks because

Accepted Answer

A)  whenever quarks are separated, the energy created by the separation creates new quark pairs. 
B)  the force between quarks is infinitely strong so they cannot be budged. 
C)  quarks immediately undergo radioactive decay when they are separated. 
D)  quarks are bound tightly together by neutrinos. 
E)  quarks are always attached to electrons. 
A)  whenever quarks are separated, the energy created by the separation creates new quark pairs. 
B)  the force between quarks is infinitely strong so they cannot be budged. 
C)  quarks immediately undergo radioactive decay when they are separated. 
D)  quarks are bound tightly together by neutrinos. 
E)  quarks are always attached to electrons.

Question 8

The gravitational force is to gravitons as the electromagnetic force is to

Accepted Answer

A)  photons. 
B)  quarks. 
C)  neutrinos. 
D)  protons. 
E)  gluons. 
A)  photons. 
B)  quarks. 
C)  neutrinos. 
D)  protons. 
E)  gluons.

Question 9

According to quantum field theory, electrons

Accepted Answer

A)  always come in pairs. 
B)  are the quanta of a matter field. 
C)  interact by exchanging quarks. 
D)  are the quanta of the electromagnetic field. 
E)  None of the above. 
A)  always come in pairs. 
B)  are the quanta of a matter field. 
C)  interact by exchanging quarks. 
D)  are the quanta of the electromagnetic field. 
E)  None of the above.

Question 10

The W+ and W- are "exchange particles" for

Accepted Answer

A)  the gravitational force. 
B)  the strong force. 
C)  the electromagnetic force. 
D)  the frictional force. 
E)  the electroweak force. 
A)  the gravitational force. 
B)  the strong force. 
C)  the electromagnetic force. 
D)  the frictional force. 
E)  the electroweak force.

Question 11

According to quantum field theory, the universe if made of

Accepted Answer

A)  photons. 
B)  baseball fields. 
C)  particles moving in empty space. 
D)  electromagnetic fields. 
E)  quantized fields. 
A)  photons. 
B)  baseball fields. 
C)  particles moving in empty space. 
D)  electromagnetic fields. 
E)  quantized fields.

Question 12

In what way is electric charge related to photons?

Accepted Answer

A)  Photons are electrically- charged particles. 
B)  Photons interact by exchanging electrically- charged particles. 
C)  Electrically- charged particles are made of photons. 
D)  Electrically- charged particles interact by exchanging photons. 
E)  They are not related at all. 
A)  Photons are electrically- charged particles. 
B)  Photons interact by exchanging electrically- charged particles. 
C)  Electrically- charged particles are made of photons. 
D)  Electrically- charged particles interact by exchanging photons. 
E)  They are not related at all.

Question 13

The Higgs field, if it is discovered, is expected to interact with particles in such a way as to give those particles

Accepted Answer

A)  the ability to exert forces. 
B)  good looks. 
C)  electric charge. 
D)  rest mass. 
E)  physical existence. 
A)  the ability to exert forces. 
B)  good looks. 
C)  electric charge. 
D)  rest mass. 
E)  physical existence.

Question 14

According to quantum field theory, what happens when two charged particles exert forces on each other?

Accepted Answer

A)  Electrons are exchanged between them. 
B)  The two particles exchange their matter fields with each other. 
C)  Each particle causes the other particle's matter field to vibrate more rapidly. 
D)  An electromagnetic wave passes from one particle to the other. 
E)  Photons are exchanged between them. 
A)  Electrons are exchanged between them. 
B)  The two particles exchange their matter fields with each other. 
C)  Each particle causes the other particle's matter field to vibrate more rapidly. 
D)  An electromagnetic wave passes from one particle to the other. 
E)  Photons are exchanged between them.

Question 15

Neutrinos are hard to detect because

Accepted Answer

A)  they experience only the gravitational force. 
B)  they move so fast. 
C)  they experience only the weak force. 
D)  they have such a small mass. 
E)  All of the above. 
A)  they experience only the gravitational force. 
B)  they move so fast. 
C)  they experience only the weak force. 
D)  they have such a small mass. 
E)  All of the above.

Question 16

Which of the following travel at or very near lightspeed?

Accepted Answer

A)  neutrino 
B)  photon 
C)  Both of the above. 
D)  Z particle 
E)  All of the above. 
A)  neutrino 
B)  photon 
C)  Both of the above. 
D)  Z particle 
E)  All of the above.

Question 17

The antiparticle of the electron is the

Accepted Answer

A)  neutrino. 
B)  photon. 
C)  positron. 
D)  proton. 
E)  neutron. 
A)  neutrino. 
B)  photon. 
C)  positron. 
D)  proton. 
E)  neutron.

Question 18

Which of the following particles is most similar to an electron?

Accepted Answer

A)  photon 
B)  neutrino 
C)  proton 
D)  quark 
E)  muon 
A)  photon 
B)  neutrino 
C)  proton 
D)  quark 
E)  muon

Question 19

At the very small- scale level, matter is

Accepted Answer

A)  very cold. 
B)  nearly at rest. 
C)  subject only to the strong nuclear force. 
D)  really made of tiny pieces of pizza. 
E)  in rapid motion. 
A)  very cold. 
B)  nearly at rest. 
C)  subject only to the strong nuclear force. 
D)  really made of tiny pieces of pizza. 
E)  in rapid motion.

Question 20

According to the current theory or "standard model" of elementary particles, which one of the following is truly an "elementary" particle?

Accepted Answer

A)  electron 
B)  proton 
C)  neutron 
D)  All of the above. 
E)  None of the above. 
A)  electron 
B)  proton 
C)  neutron 
D)  All of the above. 
E)  None of the above.

One similarity between photons and Z particles is that

Which of the following are quanta of a matter field?

The basic idea of the "string" hypothesis is that the fundamental particles are

Which force is the most difficult to incorporate into a single unified theory of the fundamental forces?

Why can we never create matter?

One currently- used practical application of antimatter is in

We never find isolated, individual quarks because

The gravitational force is to gravitons as the electromagnetic force is to

According to quantum field theory, electrons

The W⁺and W^-are "exchange particles" for

According to quantum field theory, the universe if made of

In what way is electric charge related to photons?

The Higgs field, if it is discovered, is expected to interact with particles in such a way as to give those particles

According to quantum field theory, what happens when two charged particles exert forces on each other?

Neutrinos are hard to detect because

Which of the following travel at or very near lightspeed?

The antiparticle of the electron is the

Which of the following particles is most similar to an electron?

At the very small- scale level, matter is

According to the current theory or "standard model" of elementary particles, which one of the following is truly an "elementary" particle?

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 Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Filters

Exam 17: Quantum Fields: Relativity Meets the Quantum

One similarity between photons and Z particles is that

Which of the following are quanta of a matter field?

The basic idea of the "string" hypothesis is that the fundamental particles are

Which force is the most difficult to incorporate into a single unified theory of the fundamental forces?

Why can we never create matter?

One currently- used practical application of antimatter is in

We never find isolated, individual quarks because

The gravitational force is to gravitons as the electromagnetic force is to

According to quantum field theory, electrons

The W+ and W- are "exchange particles" for

According to quantum field theory, the universe if made of

In what way is electric charge related to photons?

The Higgs field, if it is discovered, is expected to interact with particles in such a way as to give those particles

According to quantum field theory, what happens when two charged particles exert forces on each other?

Neutrinos are hard to detect because

Which of the following travel at or very near lightspeed?

The antiparticle of the electron is the

Which of the following particles is most similar to an electron?

At the very small- scale level, matter is

According to the current theory or "standard model" of elementary particles, which one of the following is truly an "elementary" particle?

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 Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Filters

The W⁺and W^-are "exchange particles" for