2.5 Classification of particles

• Fundamental particles can be broken down into smaller components.

  False
• Quarks combine to form hadrons
• Name the six types of quarks.

  Up, down, strange, charm, top, bottom
• What are the three main categories of fundamental particles?

  Quarks, leptons, gauge bosons
• Name three charged leptons.

  Electron, muon, tau
• What type of fundamental particles are the building blocks of hadrons?

  Quarks
• The strong nuclear force binds quarks together within hadrons.


  True
• Leptons interact via the strong nuclear force.

  False
• What are the three charged leptons?

  Electron, muon, tau
• Match the quark type with an example particle it forms:

  Up, Down ↔️ Protons, Neutrons

  Strange, Charm ↔️ Kaons, Lambda particles

  Top, Bottom ↔️ B-mesons, Top quarks
• Which gauge boson mediates the electromagnetic force?

  Photon
• The Standard Model describes all known fundamental particles and their interactions.


  True
• What are fundamental particles in physics?

  Basic building blocks of matter
• Name the six types of leptons.

  Electron, electron neutrino, muon, muon neutrino, tau, tau neutrino
• Quarks interact via the weak force.

  False
• Name three neutral leptons.

  Electron neutrino, muon neutrino, tau neutrino
• Which two quarks are found in protons and neutrons?

  Up, down
• What role do gauge bosons play in particle physics?

  Mediate fundamental forces
• Which force is mediated by gluons?

  Strong nuclear force
• Leptons combine to form composite particles like quarks.

  False
• Which force binds quarks within hadrons?

  Strong nuclear force
• The weak force is mediated by W and Z bosons
• The Standard Model is a theory of particle physics that describes the basic constituents of matter
• What force do leptons interact through?

  Weak nuclear force
• Leptons combine to form composite particles.

  False
• Quarks combine in groups of twos to form mesons
• Quarks combine to form hadrons
• Leptons do not interact via the strong
• Quarks are the building blocks of hadrons
• Gauge bosons transmit fundamental forces by exchanging virtual particles.


  True
• What is the hypothesized gauge boson for gravity?

  Graviton