Lesson: Units for Particle Rest Masses

In this lesson, we will learn how to use units of eV/c² to express the masses of subatomic particles and how to convert between eV/c² and kg.

Worksheet: 11 Questions

Q1:

Particle	Electron	Muon	Tauon
Mass

The table shows the masses of the three charged leptons. What is the most massive lepton–antilepton pair that could be produced via pair production from a 150 MeV photon?

Q2:

What is kg in keV/? Give your answer to 3 significant figures.

Q3:

A muon has a mass of . What is the mass of a muon in kilograms? Give your answer to 3 significant figures.

Preview Download