Particle Physics Questions Part Two (Relativity and Quantum Mechanics)
a review of the pages linked from the Physics section (including those
references contained in the introductory remarks and under the figures), you
should be able to answer all of the following questions. Note the key vocabulary words are in italics.
following questions refer to relativity concepts as used in particle physics.
is meant by relativistic mass?
What is meant by rest mass?
What did Einstein say about the concept of variable mass?
Which mass is the one you find listed on a particle identification
is the primary relationship between energy, momentum and mass? What are the units of energy commonly
used in particle physics? How are
these units related to the units of momentum and mass?
approximation E = pc is sometimes used for the energy of a
particle. For what energies is
this expression accurate to within 1%?
(Why does the answer to that question depend on the particle under
a photon has 0 rest mass, how can it have non-zero momentum? What relationship defines the energy of
what circumstances is is acceptable to ‘ignore’ a particle’s rest mass?
following questions refer to Quantum Mechanics.
contribution did Max Planck make to the development of quantum
mechanics? How did Einstein extend
Planck’s breakthrough, in a manner sufficient to merit the Nobel Prize?
role does the Heisenberg Uncertainty Principle play in particle
physics? What role did Niels
Bohr play in Quantum Mechanics?
did Paul Dirac predict the existence of an anti-electron? How and when was this prediction
what ways does light exhibit particle behavior? In what ways does light exhibit wavelike behavior? What are the key historic experiments
that demonstrate the wave-particle duality of light?