Question 1

A __________  interacts via the strong interaction.

Accepted Answer

The answer of A __________  interacts via the strong interaction....

Question 2

The positron

Accepted Answer

A)  is an antielectron. 
B)  was the first antimatter particle discovered. 
C)  is the same as a proton. 
D)  all of the above 
A)  is an antielectron. 
B)  was the first antimatter particle discovered. 
C)  is the same as a proton. 
D)  all of the above

Question 3

Leptons are the fundamental particles that are the building blocks of hadrons.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is not a fundamental force of nature?

Accepted Answer

A)  strong nuclear force 
B)  electroweak force 
C)  weak nuclear force 
D)  electromagnetic interaction 
A)  strong nuclear force 
B)  electroweak force 
C)  weak nuclear force 
D)  electromagnetic interaction

Question 5

Bosons are force-carrying particles.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following are not relativistically invariant quantities?

Accepted Answer

A)  the speed of light, c 
B)  time 
C)  mass 
D)  energy 
A)  the speed of light, c 
B)  time 
C)  mass 
D)  energy

Question 7

If a 1-kg mass is completely converted into energy, the amount of energy released would be 
9 × 1016 J.

Accepted Answer

A) True 
 B)False

Question 8

Since the mass of an object is the same for all observers, it is a relativistically ____________ quantity.

Accepted Answer

The answer of Since the mass of an object is...

Question 9

"Half-integral spin" means spin

Accepted Answer

A)  1/2. 
B)  1/2, 1, 3/2, 2, ... 
C)  1/2, 3/2, 5/2, ... 
D)  none of the above 
A)  1/2. 
B)  1/2, 1, 3/2, 2, ... 
C)  1/2, 3/2, 5/2, ... 
D)  none of the above

Question 10

Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the Earth. Yet we detect large numbers of muons at ground level because of the Pauli exclusion principle.

Accepted Answer

A) True 
 B)False

Question 11

An electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass. This pair annihilation 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.

Question 12

The color force between quarks is carried by __________.

Accepted Answer

The answer of The color force between quarks is carried...

Question 13

The six quantum numbers for quarks are __________, __________, __________, __________, __________, and  __________.

Accepted Answer

up, down, strange, c

Question 14

What is meant by neutrino oscillations?

Accepted Answer

A)  oscillating movement of neutrinos 
B)  one neutrino type (e.g., muon neutrinos) changing into another (e.g., tau neutrinos) 
C)  random changes in mass of neutrinos 
D)  none of the above 
A)  oscillating movement of neutrinos 
B)  one neutrino type (e.g., muon neutrinos) changing into another (e.g., tau neutrinos) 
C)  random changes in mass of neutrinos 
D)  none of the above

Question 15

A light year is defined as the distance light can travel at 3 × 108 m/s in one year (365 days).  How far is one light year in kilometers?  Enter your answer accurate to two decimal places in scientific notation.

Accepted Answer

Question 16

Quarks are bound together in hadrons by

Accepted Answer

A)  the strong force. 
B)  the weak force. 
C)  intermediate (or gauge) bosons. 
D)  the color force. 
A)  the strong force. 
B)  the weak force. 
C)  intermediate (or gauge) bosons. 
D)  the color force.

Question 17

Strangeness is conserved observed in strong and electromagnetic interactions, but not in weak interactions.

Accepted Answer

A) True 
 B)False

Question 18

Conservation of ____________ is observed in strong and electromagnetic interactions but not in weak interactions.

Accepted Answer

A)  baryon number 
B)  lepton number 
C)  strangeness 
D)  charm 
E)  beauty 
A)  baryon number 
B)  lepton number 
C)  strangeness 
D)  charm 
E)  beauty

Question 19

The speed of light is a relativistically invariant quantity.

Accepted Answer

A) True 
 B)False

Question 20

When a particle and antiparticle meet, they are said to annihilate each other. What does this mean?

Accepted Answer

A)  They explode into tiny fragments. 
B)  They are destroyed, and turned into an equivalent amount of energy. 
C)  They merge and simply disappear. 
D)  none of the above 
A)  They explode into tiny fragments. 
B)  They are destroyed, and turned into an equivalent amount of energy. 
C)  They merge and simply disappear. 
D)  none of the above

A __________ interacts via the strong interaction.

The positron

Leptons are the fundamental particles that are the building blocks of hadrons.

Which of the following is not a fundamental force of nature?

Bosons are force-carrying particles.

Which of the following are not relativistically invariant quantities?

If a 1-kg mass is completely converted into energy, the amount of energy released would be 9 × 10¹⁶ J.

Since the mass of an object is the same for all observers, it is a relativistically ____________ quantity.

"Half-integral spin" means spin

Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the Earth. Yet we detect large numbers of muons at ground level because of the Pauli exclusion principle.

An electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass. This pair annihilation is an example of

The color force between quarks is carried by __________.

The six quantum numbers for quarks are , , , , , and .

What is meant by neutrino oscillations?

A light year is defined as the distance light can travel at 3 × 10⁸ m/s in one year (365 days). How far is one light year in kilometers? Enter your answer accurate to two decimal places in scientific notation.

Quarks are bound together in hadrons by

Strangeness is conserved observed in strong and electromagnetic interactions, but not in weak interactions.

Conservation of ____________ is observed in strong and electromagnetic interactions but not in weak interactions.

The speed of light is a relativistically invariant quantity.

When a particle and antiparticle meet, they are said to annihilate each other. What does this mean?

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

A __________ interacts via the strong interaction.

The positron

Leptons are the fundamental particles that are the building blocks of hadrons.

Which of the following is not a fundamental force of nature?

Bosons are force-carrying particles.

Which of the following are not relativistically invariant quantities?

If a 1-kg mass is completely converted into energy, the amount of energy released would be 9 × 1016 J.

Since the mass of an object is the same for all observers, it is a relativistically ____________ quantity.

"Half-integral spin" means spin

Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the Earth. Yet we detect large numbers of muons at ground level because of the Pauli exclusion principle.

An electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass. This pair annihilation is an example of

The color force between quarks is carried by __________.

The six quantum numbers for quarks are __________, __________, __________, __________, __________, and __________.

What is meant by neutrino oscillations?

A light year is defined as the distance light can travel at 3 × 108 m/s in one year (365 days). How far is one light year in kilometers? Enter your answer accurate to two decimal places in scientific notation.

Quarks are bound together in hadrons by

Strangeness is conserved observed in strong and electromagnetic interactions, but not in weak interactions.

Conservation of ____________ is observed in strong and electromagnetic interactions but not in weak interactions.

The speed of light is a relativistically invariant quantity.

When a particle and antiparticle meet, they are said to annihilate each other. What does this mean?

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

If a 1-kg mass is completely converted into energy, the amount of energy released would be 9 × 10¹⁶ J.

The six quantum numbers for quarks are , , , , , and .

A light year is defined as the distance light can travel at 3 × 10⁸ m/s in one year (365 days). How far is one light year in kilometers? Enter your answer accurate to two decimal places in scientific notation.