Worksheet: Charged Leptons

In this worksheet, we will practice describing the properties of electrons, muons, and tauons and their antiparticles.

Q1:

Which of the following is the correct symbol for a muon?

  • A 𝑚
  • B 𝑢
  • C 𝑝
  • D 𝜇
  • E 𝜇

Q2:

Which of the following is the correct symbol for a tauon?

  • A 𝑇
  • B 𝑡
  • C 𝜏 +
  • D 𝜏
  • E 𝑡 +

Q3:

Which of the following is the antiparticle of 𝜇 ?

  • A 𝑒 +
  • B 𝑒
  • C 𝑣 𝜇
  • D 𝜇 +
  • E 𝑣 𝜇

Q4:

Which of the following is the correct symbol for an antitauon?

  • A 𝑇
  • B 𝑡
  • C 𝜏
  • D 𝜏 +
  • E 𝑡 +

Q5:

What is the relative charge of a muon?

Q6:

List the following particles in order from the least mass to the greatest mass:

  • tauon
  • photon
  • proton
  • electron
  • muon
  • neutron
  • APhoton, muon, electron,tauon, proton, neutron
  • BPhoton,tauon, muon, proton, neutron, electron
  • CPhoton, neutron, muon, proton, electron, tauon
  • DPhoton, electron, muon, proton, neutron, tauon
  • EPhoton, muon, proton, neutron, electron, tauon

Q7:

Which of the following equations shows a muon and an antimuon annihilating to produce a photon?

  • A 𝑇 + 𝑇 𝛾 +
  • B 𝑒 + 𝑒 𝛾 +
  • C 𝑢 + 𝑢 𝛾
  • D 𝜇 + 𝜇 𝛾 +
  • E 𝑑 + 𝑑 𝛾

Q8:

List the following particles in order from the greatest mass to the least mass.

  • muon
  • electron
  • tauon
  • ATauon, electron, muon
  • BMuon, electron, tauon
  • CTauon, muon, electron

Q9:

What is the relative charge of a tauon?

Q10:

What is the relative charge of an antimuon?

Q11:

Which of the following equations shows the pair production of a tauon and an antitauon from a high-energy gamma ray?

  • A 𝛾 𝜇 + 𝜇
  • B 𝛾 𝑡 + 𝑡
  • C 𝜏 + 𝜏 𝛾
  • D 𝛾 𝜏 + 𝜏
  • E 𝑡 + 𝑡 𝛾

Q12:

Which of the four fundamental forces are the three charged leptons, the electron, the muon, and the tauon, affected by?

  • AThe strong nuclear force, gravity, and the electromagnetic force
  • BThe weak nuclear force, the strong nuclear force, and gravity
  • CThe electromagnetic force, the weak nuclear force, and the strong nuclear force
  • DThe electromagnetic force, the weak nuclear force, and gravity

Q13:

List the following particles in order from the most stable to the least stable:

  • tauon
  • electron
  • muon
  • AMuon, tauon, electron
  • BElectron, tauon, muon
  • CTauon, muon, electron
  • DElectron, muon, tauon
  • ETauon, electron, muon

Q14:

What is the relative charge of an antitauon?

Q15:

Which of the following particles have a relative electric charge of 1 ?

  • proton
  • neutron
  • muon
  • photon
  • tauon
  • positron
  • APositron and neutron
  • BProton and tauon
  • CNeutron and tauon
  • DMuon and tauon
  • EPhoton and muon

Q16:

Which of the following is the correct symbol for an antimuon?

  • A m
  • B u
  • C 𝜈
  • D 𝜇
  • E 𝜇

Q17:

Which of the following is the antiparticle of 𝜏 + ?

  • A 𝑒
  • B 𝑡
  • C ̄ 𝜈 𝜏
  • D 𝜏
  • E 𝜈 𝜏

Q18:

Which of the following particles have an electric charge of + 1 ?

  • photon
  • electron
  • antimuon
  • tauon
  • proton
  • neutron
  • antitauon
  • muon
  • AAntitauon, electron, and tauon
  • BProton, electron, and photon
  • CPhoton, muon, and tauon
  • DAntimuon, proton, and antitauon
  • EAntitauon, muon, and neutron

Q19:

Which two of the following particles have the same mass?

  • electron
  • photon
  • muon
  • proton
  • neutron
  • tauon
  • antimuon
  • AAn electron and a muon
  • BA photon and a proton
  • CA tauon and an antimuon
  • DA muon and an antimuon
  • EA neutron and a tauon

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