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Lesson: Charged Leptons

In this lesson, we will learn how to describe the properties of electrons, muons, and tauons and their antiparticles.

Worksheet • 16 Questions

Q1:

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

  • A πœ‡ 
  • B πœ‡ 
  • C 𝑒 
  • D 𝑝 
  • E π‘š 

Q2:

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

  • A 𝜏 βˆ’
  • B 𝑑 +
  • C 𝑑 βˆ’
  • D 𝜏 +
  • E 𝑇 βˆ’

Q3:

Which of the following is the antiparticle of πœ‡ βˆ’ ?

  • A πœ‡ +
  • B 𝑣 πœ‡
  • C 𝑒 βˆ’
  • D 𝑣 πœ‡
  • E 𝑒 +

Q4:

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

  • A 𝜏 +
  • B 𝑑 +
  • C 𝑑 βˆ’
  • D 𝜏 βˆ’
  • E 𝑇 βˆ’

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

Q7:

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

  • A πœ‡ + πœ‡ β†’ 𝛾 βˆ’ +
  • B 𝑑 + 𝑑 β†’ 𝛾
  • C 𝑒 + 𝑒 β†’ 𝛾 βˆ’ +
  • D 𝑒 + 𝑒 β†’ 𝛾
  • E 𝑇 + 𝑇 β†’ 𝛾 βˆ’ +

Q8:

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

  • muon
  • electron
  • tauon
  • AMuon, electron, tauon
  • BTauon, muon, electron
  • CTauon, electron, muon

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 β†’ 𝜏 + 𝜏 οŽͺ 
  • B 𝑑 + 𝑑 β†’ 𝛾
  • C 𝛾 β†’ 𝑑 + 𝑑
  • D 𝜏 + 𝜏 β†’ 𝛾 οŽͺ 
  • E 𝛾 β†’ πœ‡ + πœ‡  

Q12:

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

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

Q13:

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

  • tauon
  • electron
  • muon
  • AElectron, muon, tauon
  • BTauon, electron, muon
  • CElectron, tauon, muon
  • DTauon, muon, electron
  • EMuon, tauon, electron

Q14:

What is the relative charge of an antitauon?

Q15:

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

  • proton
  • neutron
  • muon
  • photon
  • tauon
  • positron
  • AMuon and tauon
  • BPhoton and muon
  • CProton and tauon
  • DNeutron and tauon
  • EPositron and neutron

Q16:

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

  • A πœ‡ 
  • B πœ‡ 
  • C u 
  • D 𝜈 
  • E m 
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