Midterm2_Spring2007 - PffP Midterm exam 1 Part A Essay...

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PffP Midterm exam 1 Part A – Essay Questions 12 April 2007 Row________ Seat________ Last name_________________ First_______________SID___________GSI_________ Essay questions (20 pts): pick one and only one to answer; circle the one you choose. Write a page on the back of this sheet . This side is for your personal notes only. Cover the important points in a clear and concise manner – as if you have only a few minutes to tell the President, your roommate, or your parent, what that person needs to know. Clear, effective writing is important. If English is a new language for you, state so at the top of your essay. If you need to re-write the essay, ask for a new copy of this page. 1. Infrared radiation, abbreviated IR, is a particular kind of invisible light. Discuss IR, its importance and its properties. You should include comments on the following: How does it compare to visible light? What emits IR? What are it's practical applications? Do animals (and humans) sense IR? What role does it play in the Earth's climate? 2. CDs and DVDs are disks used to store movies, photographs, data, and computer programs. The player for these disks uses many physics principles that we discussed in this course. How is the information stored on the disk? Describe how the player reads the disk, starting with the motor that spins the disk and ending with the color screen that
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This note was uploaded on 02/03/2009 for the course PHYSICS C10 taught by Professor Muller during the Spring '08 term at University of California, Berkeley.

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Midterm2_Spring2007 - PffP Midterm exam 1 Part A Essay...

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