finalexam - Chapters 15 - 30 PHYS 1402 - Brooks This...

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Chapters 15 - 30 PHYS 1402 - Brooks This practice test is similar to the actual final. The final exam will focus on questions involving solving problems, and not so much on conceptual questions. The final will consist of about 25 questions designed to be completed in about 2 hours. This practice test does not cover every single concept that may be on the final. A few of the questions here are from previous class exams, but most are new. The final exam will consist of all new questions but will cover concepts covered throughout the semester. This practice exam includes an answer key, but there are no solutions to the problems. Students need to work out all solutions on their own. Select the response that best answers the given statement. Be sure to write all final multiple choice answers on your Scantron answer sheet. 1. Two point charges each have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges? a. zero b. 9.0 X 10 7 N/C c. 18 X 10 7 N/C d. 4.5 X 10 7 N/C 2. As the velocity of your spaceship increases, you would observe a. that your precision clock runs slower than normal. b. that the length of your spaceship has decreased. c. that your mass has increased. d. all of the above. e. none of the above. 3. A parallel plate capacitor is constructed with plate area of 0.40 m 2 and a plate separation of 0.10 mm. How much charge is stored on it when it is charged to a potential difference of 12 V? a. 0.21 µ C b. 0.42 µ C c. 0.63 µ C d. 0.84 µ C 4. You are designing a generator with a maximum emf 8.0 V. If the generator coil has 200 turns and a cross-sectional area of 0.030 m 2 , what would be the frequency of the generator in a magnetic field of 0.030 T? a. 7.1 Hz b. 7.5 Hz c. 8.0 Hz d. 44 Hz
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5. A plane mirror forms an image that is a. real and upright. b. virtual and upright. c. real and upside down. d. virtual and upside down. 6. An object is 15 mm in front of a converging lens, and the image is 4.0 mm behind the lens. What is the focal length of the lens? a. 11 mm b. 5.5 mm c. 3.8 mm d. 3.2 mm 7. A soap bubble has an index of refraction of 1.33. What minimum thickness of this bubble will ensure maximum reflectance of normally incident 530 nm wavelength light?
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This note was uploaded on 10/26/2008 for the course PHYS 1402 taught by Professor Brooks during the Spring '06 term at Collin College.

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finalexam - Chapters 15 - 30 PHYS 1402 - Brooks This...

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