# Week 15

**Read:**The principle of relativity (ASGv2 Chap. 29) and The absolute speed of light (ASGv2 Chap. 30).

**Key topics:**principle of relativity, speed of light postulate, relativistic time dilation and length contraction,

**Homework:**

- Inertial coordinates (Ex. 29.1),
- Simultaneity (Ex. 30.1),
- Relativistic time dilation (Ex. 30.2),
- Relativistic length contraction (Ex. 30.3)

**Lab:**Relativity laboratory (Ex. 29.2).

**Relativity Lab (4 videos)**

Chapter 29 (3 videos)

Chapter 29 (3 videos)

**Chapter 30 (11 videos)**