Example Test Questions for Chapter 5

Example Test Questions for Chapter 5 - Wavelength x...

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Willie Reaves Dr. Richard Williamon PHYS 116 13 September 2011 Example Test Questions for Chapter 5 1. As posited by the authors of Chapter 5, what is the most important reason for placing telescopes in space? a. To enable us to potentially harness the energy of black holes b. To observe light that does not penetrate earth’s atmosphere (CORRECT ANSWER) c. To have a vantage point that is closer to the stars than a terrestrial telescope d. To gain a clearer picture of light in the visible spectrum 2. Which of the following phenomena causes the “twinkling” effect of stars? a. Light pollution b. Blueshift c. Absorption d. Turbulence (CORRECT ANSWER) 3. Please write the formula describing how one calculates the speed of any wave.
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Unformatted text preview: Wavelength x frequency = speed 4. Briefly discuss the differences between radiation, particle radiation, and electromagnetic radiation. Radiation is simply energy being carried through space, while particle radiation is energy carried by a unit of matter, such as a proton or neutron. Electromagnetic radiation is different still, as energy being carried by light. 5. Explain why the term “radio waves” can be easily misunderstood in the context of music. Most people think that radio waves are sound waves, when they are in fact a form of light. Musical artists often mention putting something “on the radio waves” or “on the air” – these phrases are misnomers....
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This note was uploaded on 11/24/2011 for the course PHYS 116 taught by Professor Richardwilliamon during the Fall '11 term at Emory.

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