The Hidden Kingdom of Particles

Which of the following is a lepton?

• Proton

• Neutron

• Electron

• Pion

What is the charge of a muon?

• 0

• +1

• -1

• +2

Which lepton is the heaviest?

• Electron

• Muon

• Tau

• Electron Neutrino

Which lepton is most common in everyday matter?

• Tau

• Electron

• Muon

• Pion

What is the charge of an electron neutrino?

• -1

• +1

• 0

• -2

Which lepton can pass through entire planets without interacting?

• Proton

• Electron

• Neutrino

• Muon

Which neutrino is associated with the muon?

• Electron neutrino

• Muon neutrino

• Tau neutrino

• Proton neutrino

Neutrinos have approximately what mass?

• Zero

• Slightly more than an electron

• Same as a proton

• Same as a neutron

In which process are electron neutrinos produced naturally?

• Beta decay

• Combustion

• Condensation

• Photosynthesis

Which lepton is key in cosmic ray studies?

• Muon

• Tau

• Electron

• Proton