Lesson 1: Relativity  What is it?
Note: For Fermilab's Time Dilation Challenge and The Relativity Game, you need Shockwave. You may painlessly Download Shockwave here if you do not have it.Lesson 2: Time Dilation
Lesson 3: Length Contraction
Lesson 4: Relativistic Mass

Question Answer Choice d  3.46 light years: Excellent work! You got it. All you have to do is realize that 4 light years is the distance in the earth's frame which is the length for the mover by the mover, L_{o}. We want to determine the distance in the ship's frame, which is the length of the mover by the stationary frame, L. Your work should resemble mine that is shown below! Therefore, the earth measures the distance to be 4 light years, and the space ship measures the distance to be 3.46 light years. Lesson 3: Length Contraction

© Brian Wegley, 1998
Comments and suggestions can be sent by email to Brian Wegley of Glenbrook South High School.. This page last updated on 7/23/98.