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 𝜇
  • B 𝜇
  • C 𝑝
  • D 𝑚
  • E 𝑢

Q2:

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

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

Q3:

Which of the following is the antiparticle of 𝜇?

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

Q4:

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

  • A 𝜏
  • B 𝑡
  • C 𝑇
  • 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, proton, neutron, electron, tauon
  • BPhoton,tauon, muon, proton, neutron, electron
  • CPhoton, electron, muon, proton, neutron, tauon
  • DPhoton, muon, electron,tauon, proton, neutron
  • EPhoton, neutron, muon, proton, 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 𝑑 + 𝑑 𝛾
  • D 𝑢 + 𝑢 𝛾
  • E 𝜇 + 𝜇 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?

  • A 1
  • B 1 3
  • C 1 2
  • D + 1
  • E + 2 3

Q11:

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

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

Q12:

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

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

Q13:

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

  • tauon
  • electron
  • muon
  • AMuon, tauon, electron
  • BTauon, electron, muon
  • CElectron, muon, tauon
  • DElectron, tauon, muon
  • ETauon, muon, electron

Q14:

What is the relative charge of an antitauon?

  • A + 1 3
  • B + 1
  • C 1 3
  • D + 2 3
  • E 1

Q15:

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

  • proton
  • neutron
  • muon
  • photon
  • tauon
  • positron
  • ANeutron and tauon
  • BMuon and tauon
  • CProton and tauon
  • DPositron and neutron
  • EPhoton and muon

Q16:

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

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

Q17:

Which of the following is the antiparticle of 𝜏?

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

Q18:

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

  • photon
  • electron
  • antimuon
  • tauon
  • proton
  • neutron
  • antitauon
  • muon
  • AAntitauon, electron, and tauon
  • BAntitauon, muon, and neutron
  • CAntimuon, proton, and antitauon
  • DProton, electron, and photon
  • EPhoton, muon, and tauon

Q19:

Which two of the following particles have the same mass?

  • electron
  • photon
  • muon
  • proton
  • neutron
  • tauon
  • antimuon
  • AA muon and an antimuon
  • BA photon and a proton
  • CA tauon and an antimuon
  • DAn electron and a muon
  • EA neutron and a tauon

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