Question 1

In a particle reaction, the number of baryons going into the reaction must equal the number emerging from the reaction.

Accepted Answer

A) True 
 B)False

Question 2

Why do strange particles have long lifetimes compared to other strongly interacting particles?

Accepted Answer

A)  No one knows-this is why they are called "strange." 
B)  They only decay via the weak interaction. 
C)  They are more massive. 
D)  none of the above 
A)  No one knows-this is why they are called "strange." 
B)  They only decay via the weak interaction. 
C)  They are more massive. 
D)  none of the above

Question 3

Quarks, originally isolated in cosmic ray showers, are elementary particles possessing electric charge equal to 1/3 or 2/3 the magnitude of the charge of a proton.

Accepted Answer

A) True 
 B)False

Question 4

Einstein's famous equation E  = mc2 is a statement of __________.

Accepted Answer

the equiva

Question 5

The fundamental particles that are the building blocks of hadrons are __________.

Accepted Answer

The answer of The fundamental particles that are the building...

Question 6

The rest energy of a particular subatomic particle is 1200 MeV. If this particle is traveling at 90% the speed of light, what is its total relativistic energy?

Accepted Answer

The answer of The rest energy of a particular subatomic...

Question 7

Recent experiments suggest that the lifetime of the proton is over 10 33 years, more than what is predicted by the simplest grand unified theories.

Accepted Answer

A) True 
 B)False

Question 8

A fundamental force in nature is the

Accepted Answer

A)  strong interaction. 
B)  weak interaction. 
C)  electromagnetic interaction. 
D)  gravitational interaction. 
E)  all of the above 
A)  strong interaction. 
B)  weak interaction. 
C)  electromagnetic interaction. 
D)  gravitational interaction. 
E)  all of the above

Question 9

Models for combining the electromagnetic, weak and strong nuclear interactions into a single basic force are __________.

Accepted Answer

The answer of Models for combining the electromagnetic, weak and...

Question 10

Match between columns
                        Premises: subatomic particles not subject to the Pauli exclusion principle
prediction of special relativity that moving clocks run slow
subatomic particles which possess a quantum "charge" that is conserved in strong and electromagnetic interactions, but not in weak interactions
may annihilate upon collision with a particle to produce gamma rays
subatomic particles belonging to one of three families that do not participate in the strong interaction
these particles possess half-integral spins
strongly interacting spin 0 or 1 particles
strongly interacting spin 1/2 or 3/2 particles
theory for which S. Weinberg and A. Salam shared the 1979 Nobel Prize in physics
intrinsic angular momentum carried by subatomic particles quantized in units of h /2 π
models for combining the electromagnetic, weak and strong nuclear interactions into a single basic force
carrier particles for the fundamental forces
fractionally charged particles; building blocks of all hadrons
quantum "charge" first explicitly manifested in the DS1U1P10S1S1P0 meson
spin 1/2 particles that do not interact via the strong force

Accepted Answer

The Answer of time dilation and GUTs and electroweak interaction is...

Question 11

Steven Weinberg, Abdus Salam, and Sheldon Glashow shared the 1979 Nobel Prize in physics for their development of a(n)

Accepted Answer

A)  electroweak theory. 
B)  GUT. 
C)  quark theory. 
D)  generalized theory of relativity. 
E)  theory of strangeness. 
A)  electroweak theory. 
B)  GUT. 
C)  quark theory. 
D)  generalized theory of relativity. 
E)  theory of strangeness.

Question 12

When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass. This pair production is an example of

Accepted Answer

A)  time dilation. 
B)  length contraction. 
C)  the equivalence of mass and energy. 
D)  the principle of relativity. 
E)  none of the above. 
A)  time dilation. 
B)  length contraction. 
C)  the equivalence of mass and energy. 
D)  the principle of relativity. 
E)  none of the above.

In a particle reaction, the number of baryons going into the reaction must equal the number emerging from the reaction.

Why do strange particles have long lifetimes compared to other strongly interacting particles?

Quarks, originally isolated in cosmic ray showers, are elementary particles possessing electric charge equal to 1/3 or 2/3 the magnitude of the charge of a proton.

Einstein's famous equation E = mc² is a statement of __________.

The fundamental particles that are the building blocks of hadrons are __________.

The rest energy of a particular subatomic particle is 1200 MeV. If this particle is traveling at 90% the speed of light, what is its total relativistic energy?

Recent experiments suggest that the lifetime of the proton is over 10 ³³ years, more than what is predicted by the simplest grand unified theories.

A fundamental force in nature is the

Models for combining the electromagnetic, weak and strong nuclear interactions into a single basic force are __________.

Steven Weinberg, Abdus Salam, and Sheldon Glashow shared the 1979 Nobel Prize in physics for their development of a(n)

When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass. This pair production is an example of

The Study of Motion

Newton S Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

Optics

Atomic Physics

Nuclear Physics

Filters

Exam 12: Special Relativity and Elementary Particles

In a particle reaction, the number of baryons going into the reaction must equal the number emerging from the reaction.

Why do strange particles have long lifetimes compared to other strongly interacting particles?

Quarks, originally isolated in cosmic ray showers, are elementary particles possessing electric charge equal to 1/3 or 2/3 the magnitude of the charge of a proton.

Einstein's famous equation E = mc2 is a statement of __________.

The fundamental particles that are the building blocks of hadrons are __________.

The rest energy of a particular subatomic particle is 1200 MeV. If this particle is traveling at 90% the speed of light, what is its total relativistic energy?

Recent experiments suggest that the lifetime of the proton is over 10 33 years, more than what is predicted by the simplest grand unified theories.

A fundamental force in nature is the

Models for combining the electromagnetic, weak and strong nuclear interactions into a single basic force are __________.

Steven Weinberg, Abdus Salam, and Sheldon Glashow shared the 1979 Nobel Prize in physics for their development of a(n)

When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass. This pair production is an example of

The Study of Motion

Newton S Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

Optics

Atomic Physics

Nuclear Physics

Filters

Einstein's famous equation E = mc² is a statement of __________.

Recent experiments suggest that the lifetime of the proton is over 10 ³³ years, more than what is predicted by the simplest grand unified theories.