Question 1

A photon can produce an electron and antielectron pair through the process of

Accepted Answer

A)  quantum tunneling. 
B)  pair creation. 
C)  parity violation. 
D)  CPT invariance. 
A)  quantum tunneling. 
B)  pair creation. 
C)  parity violation. 
D)  CPT invariance.

Question 2

The force field with the smallest range is that associated with

Accepted Answer

A)  electromagnetism. 
B)  gravity. 
C)  the strong interaction. 
D)  the weak interaction. 
A)  electromagnetism. 
B)  gravity. 
C)  the strong interaction. 
D)  the weak interaction.

Question 3

The correct listing of the following three categories of particles, in order of increasing number of particles in the groups, is

Accepted Answer

A)  baryons, leptons, mesons. 
B)  mesons, baryons, leptons. 
C)  leptons, mesons, baryons. 
D)  baryons, mesons, leptons. 
A)  baryons, leptons, mesons. 
B)  mesons, baryons, leptons. 
C)  leptons, mesons, baryons. 
D)  baryons, mesons, leptons.

Question 4

Of the following three categories of particles, the only group that contains particles with zero mass is the

Accepted Answer

A)  baryons. 
B)  mesons. 
C)  leptons. 
D)  More than one of the previous responses are valid. 
A)  baryons. 
B)  mesons. 
C)  leptons. 
D)  More than one of the previous responses are valid.

Question 5

Calling a conservation law approximate means that the relevant quantity is

Accepted Answer

A)  conserved, with a high probability under identical conditions. 
B)  conserved, within a small percentage under each instance. 
C)  conserved, under a well-defined set of circumstances. 
D)  conserved, within the restrictions of the Heisenberg uncertainty relations. 
A)  conserved, with a high probability under identical conditions. 
B)  conserved, within a small percentage under each instance. 
C)  conserved, under a well-defined set of circumstances. 
D)  conserved, within the restrictions of the Heisenberg uncertainty relations.

Question 6

Particles with half-integer spin are called

Accepted Answer

A)  bosons. 
B)  fermions. 
C)  mesons. 
D)  quarks. 
A)  bosons. 
B)  fermions. 
C)  mesons. 
D)  quarks.

Question 7

The neutron-proton pair have a magnitude of mass that is

Accepted Answer

A)  the smallest among known baryons. 
B)  the largest among known baryons. 
C)  Neither of the first two responses is valid. 
D)  Hold it! If the property of spin were substituted for mass in the question, one of the first two responses would be valid. 
A)  the smallest among known baryons. 
B)  the largest among known baryons. 
C)  Neither of the first two responses is valid. 
D)  Hold it! If the property of spin were substituted for mass in the question, one of the first two responses would be valid.

Question 8

Electrons and photons are related in each of the following ways except

Accepted Answer

A)  accelerating electrons produce photons. 
B)  virtual photons produce forces between electrons. 
C)  both particles obey the Pauli Exclusion Principle. 
D)  Hold it! There are no exceptions. 
A)  accelerating electrons produce photons. 
B)  virtual photons produce forces between electrons. 
C)  both particles obey the Pauli Exclusion Principle. 
D)  Hold it! There are no exceptions.

Exam 41: Elementary Particles and Cosmology

A photon can produce an electron and antielectron pair through the process of

The force field with the smallest range is that associated with

The correct listing of the following three categories of particles, in order of increasing number of particles in the groups, is

Of the following three categories of particles, the only group that contains particles with zero mass is the

Calling a conservation law approximate means that the relevant quantity is

Particles with half-integer spin are called

The neutron-proton pair have a magnitude of mass that is

Electrons and photons are related in each of the following ways except

Space, Time, and Mass

Motion Along a Straight Line

Vectors

Motion in Two and Three Dimensions

Newtons Laws of Motion

Further Applications of Newtons Laws

Work and Energy

Conservation of Energy

Gravitation

Systems of Particles

Collisions

Rotation of a Rigid Body

Dynamics of a Rigid Body

Statics and Elasticity

Oscillations

Waves

Sound

Fluid Mechanics

The Ideal Gas

Heat

Thermodynamics

Electric Force and the Electric Charge

The Electric Field

Gauss Law

Electrostatic Potential and Energy

Capacitors and Dielectrics

Currents and Ohms Law

Direct Current Circuits

Magnetic Force and Field

Charges and Currents in Magnetic Fields

Electromagnetic Induction

Alternating Current Circuits

Electromagnetic Waves

Reflection, Refraction, and Optics

Interference and Diffraction

The Theory of Special Relativity

Quanta of Light

Spectral Lines, Bohrs Theory, and Quantum Mechanics

Quantum Structure of Atoms, Molecules, and Solids

Nuclei

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