Question 1

Which of the following are quanta of the electromagnetic field?

Accepted Answer

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

Question 2

The first "generation" of electroweak particles consists of

Accepted Answer

A)  the electron and the electron neutrino. 
B)  the proton and the neutron. 
C)  the electron, muon, and tauon. 
D)  the up quark and the down quark. 
E)  the electron neutrino, muon neutrino, and tau neutrino. 
A)  the electron and the electron neutrino. 
B)  the proton and the neutron. 
C)  the electron, muon, and tauon. 
D)  the up quark and the down quark. 
E)  the electron neutrino, muon neutrino, and tau neutrino. A

Question 3

The reason neutrinos are so penetrating is that

Accepted Answer

A)  they are very light. 
B)  they are very heavy. 
C)  they feel only the weak nuclear force, and gravity. 
D)  they move so fast. 
E)  they feel only strong nuclear force, and gravity. 
A)  they are very light. 
B)  they are very heavy. 
C)  they feel only the weak nuclear force, and gravity. 
D)  they move so fast. 
E)  they feel only strong nuclear force, and gravity. C

Question 4

The first "generation" of strongly interacting particles consists of

Accepted Answer

A)  the up quark and the electron. 
B)  the up quark and the down quark. 
C)  the electron and the electron neutrino. 
D)  the proton and the neutron. 
E)  the up quark and the gluon. 
A)  the up quark and the electron. 
B)  the up quark and the down quark. 
C)  the electron and the electron neutrino. 
D)  the proton and the neutron. 
E)  the up quark and the gluon.

Question 5

Quantum field theory arises out of the combination of

Accepted Answer

A)  quantum theory and nuclear physics. 
B)  quantum theory and the big bang theory of the creation of the universe. 
C)  the general theory of relativity and quantum theory. 
D)  the special theory of relativity and quantum theory. 
E)  the special theory of relativity and the theory of electromagnetism. 
A)  quantum theory and nuclear physics. 
B)  quantum theory and the big bang theory of the creation of the universe. 
C)  the general theory of relativity and quantum theory. 
D)  the special theory of relativity and quantum theory. 
E)  the special theory of relativity and the theory of electromagnetism.

Question 6

In pair creation, an electron- positron pair is created from

Accepted Answer

A)  nothing. 
B)  a photon. 
C)  a neutron. 
D)  a neutrino. 
E)  a rabbit. 
A)  nothing. 
B)  a photon. 
C)  a neutron. 
D)  a neutrino. 
E)  a rabbit.

Question 7

The Planck time is

Accepted Answer

A)  the time it takes for light to travel across-- or around-- the entire universe. 
B)  the time when the cosmic background radiation originated. 
C)  the time it takes for an electron in an unexcited hydrogen atom to orbit the nucleus one time. 
D)  the time required for pair creation. 
E)  the shortest time that has any physical meaning. 
A)  the time it takes for light to travel across-- or around-- the entire universe. 
B)  the time when the cosmic background radiation originated. 
C)  the time it takes for an electron in an unexcited hydrogen atom to orbit the nucleus one time. 
D)  the time required for pair creation. 
E)  the shortest time that has any physical meaning.

Question 8

According to current theory, the proton is made of smaller particles known as

Accepted Answer

A)  neutrinos. 
B)  quarks. 
C)  neutrons. 
D)  electrons. 
E)  mesons. 
A)  neutrinos. 
B)  quarks. 
C)  neutrons. 
D)  electrons. 
E)  mesons.

Question 9

Neutrinos can feel

Accepted Answer

A)  the strong force. 
B)  the electromagnetic force. 
C)  Both of the above. 
D)  the weak force. 
E)  None of the above. 
A)  the strong force. 
B)  the electromagnetic force. 
C)  Both of the above. 
D)  the weak force. 
E)  None of the above.

Question 10

The strong force is to gluons as the gravitational force is to

Accepted Answer

A)  photons. 
B)  Z particles. 
C)  neutrinos. 
D)  quarks. 
E)  gravitons. 
A)  photons. 
B)  Z particles. 
C)  neutrinos. 
D)  quarks. 
E)  gravitons.

Question 11

During a positron emission tomography (PET) scan of the brain,

Accepted Answer

A)  radioactive fluorine creates positrons within the brain that are detected as they leave the patient. 
B)  an external positron beam is sent through the patient's brain and detected as it leaves the patient. 
C)  matter and antimatter annihilate within the brain to create positrons that are detected as they leave the patient. 
D)  positrons and electrons annihilate within the brain to create gamma photons that are detected as they leave the patient. 
E)  highly sensitive detectors measure the positrons that are naturally emitted by the human body. 
A)  radioactive fluorine creates positrons within the brain that are detected as they leave the patient. 
B)  an external positron beam is sent through the patient's brain and detected as it leaves the patient. 
C)  matter and antimatter annihilate within the brain to create positrons that are detected as they leave the patient. 
D)  positrons and electrons annihilate within the brain to create gamma photons that are detected as they leave the patient. 
E)  highly sensitive detectors measure the positrons that are naturally emitted by the human body.

Question 12

Which of the following are quanta?

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

Physicists use bubble chambers primarily for the purpose of

Accepted Answer

A)  detecting fission. 
B)  taking bubble- baths. 
C)  detecting sub- atomic particles. 
D)  detecting radioactivity. 
E)  None of the above. 
A)  detecting fission. 
B)  taking bubble- baths. 
C)  detecting sub- atomic particles. 
D)  detecting radioactivity. 
E)  None of the above.

Question 15

Which of these can feel the electric force?

Accepted Answer

A)  Z particle 
B)  neutrino 
C)  photon 
D)  All of the above. 
E)  None of the above. 
A)  Z particle 
B)  neutrino 
C)  photon 
D)  All of the above. 
E)  None of the above.

Question 16

Which of the following particles is most similar to a muon?

Accepted Answer

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

Question 17

According to quantum field theory, the essential reality is

Accepted Answer

A)  a few fields. 
B)  electromagnetic radiation. 
C)  particles moving in empty space. 
D)  quarks, electrons, neutrinos, and their anti- particles. 
E)  chocolate fudge. 
A)  a few fields. 
B)  electromagnetic radiation. 
C)  particles moving in empty space. 
D)  quarks, electrons, neutrinos, and their anti- particles. 
E)  chocolate fudge.

Question 18

In the process of pair- creation by a high- energy photon, energy is

Accepted Answer

A)  conserved. 
B)  created. 
C)  destroyed. 
A)  conserved. 
B)  created. 
C)  destroyed.

Question 19

Let "m" represent the mass of an electron, and "c" represent the speed of light. In order to create an electron- positron pair, we must start with a photon whose energy is

Accepted Answer

A)  at least mc2. 
B)  at least 2mc2. 
C)  at least 4mc2. 
D)  any value greater than zero. 
E)  Actually it is impossible to create such pairs from photons. 
A)  at least mc2. 
B)  at least 2mc2. 
C)  at least 4mc2. 
D)  any value greater than zero. 
E)  Actually it is impossible to create such pairs from photons.

Question 20

The positron was first predicted by

Accepted Answer

A)  Heisenberg. 
B)  Einstein. 
C)  Elvis Presley. 
D)  Planck. 
E)  Dirac. 
A)  Heisenberg. 
B)  Einstein. 
C)  Elvis Presley. 
D)  Planck. 
E)  Dirac.

Which of the following are quanta of the electromagnetic field?

The first "generation" of electroweak particles consists of

The reason neutrinos are so penetrating is that

The first "generation" of strongly interacting particles consists of

Quantum field theory arises out of the combination of

In pair creation, an electron- positron pair is created from

The Planck time is

According to current theory, the proton is made of smaller particles known as

Neutrinos can feel

The strong force is to gluons as the gravitational force is to

During a positron emission tomography (PET) scan of the brain,

Which of the following are quanta?

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

Physicists use bubble chambers primarily for the purpose of

Which of these can feel the electric force?

Which of the following particles is most similar to a muon?

According to quantum field theory, the essential reality is

In the process of pair- creation by a high- energy photon, energy is

Let "m" represent the mass of an electron, and "c" represent the speed of light. In order to create an electron- positron pair, we must start with a photon whose energy is

The positron was first predicted by

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

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Exam 17: Quantum Fields: Relativity Meets the Quantum

Which of the following are quanta of the electromagnetic field?

The first "generation" of electroweak particles consists of

The reason neutrinos are so penetrating is that

The first "generation" of strongly interacting particles consists of

Quantum field theory arises out of the combination of

In pair creation, an electron- positron pair is created from

The Planck time is

According to current theory, the proton is made of smaller particles known as

Neutrinos can feel

The strong force is to gluons as the gravitational force is to

During a positron emission tomography (PET) scan of the brain,

Which of the following are quanta?

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

Physicists use bubble chambers primarily for the purpose of

Which of these can feel the electric force?

Which of the following particles is most similar to a muon?

According to quantum field theory, the essential reality is

In the process of pair- creation by a high- energy photon, energy is

Let "m" represent the mass of an electron, and "c" represent the speed of light. In order to create an electron- positron pair, we must start with a photon whose energy is

The positron was first predicted by

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