PHY 114 Warm-Up

Reading: Chapter 33 sections 4 and 7

This Warmup is due Tuesday 4/22 at 4 AM


Name:

Student ID#


q1 - Describe the Poynting Vector


q2 - Why is it bad to wear sunglasses that do not block UV light?


q3 - Which of the following is true?

Gamma rays are often used in tanning salons.
The Sun is a major source of UV light
The intensity of light is proportional to the square root of the maximum magnetic field value.
All of the above.




Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.): (If you don't mind, please include your e-mail address for quick replies from Prof. Kim-Shapiro - this is optional)





Daniel Kim-Shapiro, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, U.S.A.
shapiro@wfu.edu