Lesson: Mass-Energy Equivalence

In this lesson, we will learn how to calculate the rest mass-energy of massive objects and how much energy is required to produce particles with given masses.

Worksheet: 10 Questions

Q1:

The amount of energy needed to create a tauon–antitauon pair is 3,560 MeV. An electron has a rest mass of . How many times more massive is a tauon than an electron? Give your answer to 3 significant figures.

Q2:

If a metal sphere has a rest mass energy of J, what is its rest mass? Give your answer to 2 significant figures.

Q3:

A proton has a rest mass of kg. What is the rest mass energy of a proton? Give your answer to 3 significant figures.

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